Skeletal Muscle Power
Open accessAbstract
In Brief Muscle power declines earlier and more precipitously with advancing age compared with muscle strength. Peak muscle power also has emerged as an important predictor of functional limitations in older adults. Our current working hypothesis is focused on examining lower extremity muscle power as a more discriminant variable for understanding the relationships between impairments, functional limitations, and resultant disability with aging. This article emphasizes that skeletal muscle power impairments are critical physiological determinants of physical functioning and mobility limitations among older adults.
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Cites
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Claims the paper makes
16 of 67 cited sources checked · 1 supported · 3 flagged · accuracy not yet measured
- Premisecitation
In 45 older adults with self-reported mobility limitations, improvements in knee and leg extensor muscle power after high-velocity power training were approximately twofold greater than gains from strength training.
“Improvements in knee and leg extensor muscle power after high velocity power training were approximately twofold greater compared to gains in muscle power as a result of strength training.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [25] source
The Abstract (page unavailable) identifies this as a cross-sectional study of 34 older women measuring ankle-flexor power, not a training comparison in 45 older adults. It reports associations with functional performance, not approximately twofold greater gains after high-velocity training than after strength training. (LLM, conf=0.88)
Checked by a reasoning model — may be wrong.
Experimental — accuracy not yet measured
- Premisecitation
Earles et al. reported a 50-141% increase in leg power following 12 weeks of high-velocity resistance training combined with moderate-intensity non-resistance exercise compared to a structured walking program in older men and women.
“Earleset al. (17) reported a 50–141% increase in leg power following 12 weeks of high velocity resistance training in combination with moderate intensity non-resistance exercise compared to a structured walking program in older men and women.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [17] source
The Discussion reports that Earles et al. found a 22% increase in leg-press power after 12 weeks, not the claimed 50–141%. It does describe a significant power difference between the training and walking groups, but that does not support the claimed magnitude. (LLM, conf=0.88)
Checked by a reasoning model — may be wrong.
Experimental — accuracy not yet measured
- Premisecitation
Peak muscle power is an important predictor of functional limitations in older adults.
“Peak muscle power has also emerged as an important predictor of functional limitations in older adults.”
Quote in the paperSubstantial claim1 of 3 sources checked - Premisecitation
Scores on the 12-point SPPB summary scale indicate a gradient of functional decline that is highly predictive of subsequent mobility-related disability, institutionalization, and mortality.
“Scores obtained on a 12 point summary scale indicate a gradient of functional decline that has been shown to be highly predictive of subsequent mobility-related disability, institutionalization, and mortality (22).”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [22] source
The Introduction says the SPPB assesses lower-extremity function and predicts subsequent disability, institutionalization, and mortality. The Methods use an SPPB score of ≤9 to define mobility impairment, but our copy does not specify a 12-point scale or state that its scores indicate a gradient of functional decline. (LLM, conf=0.82)
Experimental — accuracy not yet measured
- Premisecitation
In community-dwelling older adults with objective mobility limitations, leg power consistently explained a greater proportion of variance (2-8%) on all measures of physical performance than muscle strength did.
“Compared to muscle strength, leg power consistently explained a greater proportion of the variance (2–8%) on all measures of physical performance (stair climb and chair stand performance, gait speed and the SPPB) assessed in these mobility-limited participants.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [5] source
The Outcome Measures section (p. 3) describes measurements of limb power, strength, and the SPPB, but our copy does not report how much variance in physical performance each explains. Searches for the 2–8% figure and for comparisons across stair climbing, chair stands, gait speed, and the SPPB found no such analysis. (LLM, conf=0.74)
Experimental — accuracy not yet measured
- Premisecitation
In a secondary analysis, changes in leg power were significantly and independently associated with the clinically meaningful differences observed in SPPB and gait speed.
“In a secondary analysis of this study, Bean et al. (6) used multivariate regression models to delineate how the changes in leg power were significantly and independently associated with the clinically meaningful differences observed in SPPB and gait speed.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [6] source
The Methods and Table 2 report adjusted regression models showing significant associations of leg power with SPPB scores and habitual gait speed. But the Discussion describes the analysis as cross-sectional: it did not assess changes in leg power or establish that changes were associated with clinically meaningful differences in those outcomes. The leg-power models were also separate from the strength models, rather than adjusted for strength. (LLM, conf=0.88)
Experimental — accuracy not yet measured
- Premisecitation
Fielding et al. observed an 84% greater increase in leg press power in the high-velocity training group compared to the low-velocity group after 16 weeks in older women with self-reported disability.
“After 16 weeks of training, they observed an 84% greater increase in leg press power in the high velocity training group compared to the low velocity group.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [18] source
The Methods describe a cross-sectional analysis of baseline data, and the Conclusion reports associations between leg press velocity and balance measures; neither reports a 16-week comparison of training groups. Searches for Fielding and the claimed 84% increase found no passage in our copy addressing that result. (LLM, conf=0.75)
Experimental — accuracy not yet measured
- Premisecitation
Two power training intervention studies have demonstrated that high-velocity resistance training is associated with greater improvements in functional performance compared to conventional strength training.
“Two power training intervention studies have demonstrated that high velocity resistance training is associated with greater improvements in functional performance compared to conventional strength training.”
Quote in the paperSubstantial claim1 of 2 sources checked- cites [27]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- cites [10] source
The Abstract discusses an association between muscle power and physical functioning, but not improvements following training. The Protocol describes single-session muscle testing, not an intervention. Searches for power-training interventions and comparisons with conventional strength training found no passage in our copy reporting the claimed results from two studies. (LLM, conf=0.76)
Experimental — accuracy not yet measured
- Premisecitation
Muscle power remained an independent predictor of functional performance in multivariate analyses after accounting for muscle strength and additional self-report measures of health status and physical functioning.
“Furthermore, muscle power remained an independent predictor of functional performance in multivariate analyses after accounting for muscle strength and additional self-report measures of health status and physical functioning.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [34]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
Contraction velocity of leg extensors is a stronger predictor than muscle strength of performance on lower intensity functional tasks such as habitual walking speed.
“Compared to muscle strength, contraction velocity of leg extensors has been shown to be a stronger predictor of performance on lower intensity functional tasks such as habitual walking speed (r2 = 0.18 vs. 0.06)(33).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [33]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
With increasing age, muscle power decreases earlier and more steeply than muscle strength does.
“Muscle power declines earlier and more precipitously with advancing age compared to muscle strength.”
- Also stated in: § Introduction · boosted
“skeletal muscle power (the product of the force and velocity of muscle contraction) has been shown to decline earlier and more rapidly than muscle strength with advancing age(1).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [1] source
- Also stated in: § Introduction · boosted
- Premisecitation
Among community-dwelling older adults with mobility limitations, higher leg press contraction velocity generated at 40% 1RM was associated with better performance on several composite measures of balance that predict falling.
“Among community dwelling older adults with mobility limitations, higher leg press contraction velocity (generated at 40% 1RM) was associated with better performance on several composite measures of balance that are predictive of falling.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [26] source
- Premisecitation
In older men and women with mobility limitations, power output at 40% 1RM explained more variability in habitual gait velocity, chair rise performance, and stair climb performance than peak power at 70% 1RM did.
“Power output at 40% 1RM explained more of the variability in habitual gait velocity than did peak power at 70% 1RM (59% vs. 51%) and consistently accounted for higher respective percentages of the variance in other functional tasks such as chair rise performance (28% vs. 24%) and stair climb performance (43% vs. 42%).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [15] source
- Premisecitation
Older adults with low muscle power output had a 2-3 fold greater risk of significant mobility impairments compared to individuals with low muscle strength.
“Older adults with low muscle power output had a 2–3 fold greater risk of significant mobility impairments compared to individuals with low muscle strength.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [9] source
- Premisecitation
In a large cohort of 1032 older adults from the InCHIANTI study, impairments in muscle power were more influential proximal determinants of mobility performance than impairments in muscle strength.
“Bean et al. (9) replicated these observations in a large cohort of 1032 older adults from the InCHIANTI study and demonstrated that impairments in muscle power were more influential proximal determinants of mobility performance than impairments in muscle strength.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [9] source
- Premisecitation
Type II muscle fibers can generate four times the power output of type I fibers.
“the selective reduction in the number and size of type II muscle fibers with advancing age which have the ability to generate four times the power output of type I fibers (24).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [24] source
- Premisecitation
In elderly women with self-reported functional limitations, ankle flexor muscle power was a stronger predictor than muscle strength of chair rise performance and stair climb performance.
“Compared to muscle strength, muscle power of the ankle flexors was a stronger predictor of chair rise (r = 0.58 vs. 0.32) and stair climb performance (r = 0.49 vs. 0.37).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [34]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Interpretationreasoning
Muscle power is a more discriminant predictor of functional performance in older adults than muscle strength is.
“Muscle power is a more discriminant predictor of functional performance in older adults than muscle strength.”
Quote in the paperSubstantial claim - Premisecitation
A 20 meter improvement in 6-minute walk time and respective 0.5 and 1.0 unit increases in SPPB score correspond to clinically meaningful and substantial improvements in physical performance measures among older adults.
“A 20 meter improvement in 6 minute walk time and a respective 0.5 and 1.0 unit increase in SPPB score correspond to clinically meaningful and substantial improvements in physical performance measures among older adults (29).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [29]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
In 1880 relatively healthy older adults, annualized rates of muscle mass decline were approximately 2% per year.
“In this cohort, annualized rates of muscle mass decline were approximately 2% per year.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [21] source
- Premisecitation
Single muscle fiber contractile function may be preserved in older adults despite significant reductions in whole muscle size and composition.
“Several studies have shown that single muscle fiber contractile function may be preserved in older adults despite the presence of significant reductions in whole muscle size and composition(20).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [20] source
- Interpretationcitation
Several carefully conducted randomized trials have demonstrated that high-velocity resistance training is more effective for improving muscle power compared to traditional slow-velocity training.
“In summary, several carefully conducted randomized trials have demonstrated that high velocity resistance training is more effective for improving muscle power compared to traditional slow velocity training.”
Quote in the paperSubstantial claim - Premisecitation
Pre-movement time and the rate of EMG rise were markedly impaired in mobility-limited older adults during maximal power testing compared to healthy middle-aged and healthy older adults.
“Pre-movement time (i.e. duration between EMG onset and movement onset) and the rate of EMG rise (duration and relative amplitude of muscle activation) were markedly impaired in mobility-limited older adults during maximal power testing compared to healthy middle-aged adults and healthy older adults.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [14] source
- Interpretationcitation
These findings are consistent with previous studies suggesting that surviving fibers compensate to partially correct deficits at the whole muscle level in an attempt to maintain optimal force-generating capacity.
“These findings are consistent with previous studies suggesting that surviving fibers compensate to partially correct deficits at the whole muscle level in an attempt to maintain optimal force-generating capacity (20).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [20] source
- Interpretationreasoning
Taken together, these studies suggest that impairments in the neuromuscular system may be a major physiologic mechanism contributing to muscle power deficits and mobility limitations with advancing age.
“Taken together, these studies suggest that impairments in the neuromuscular system may be a major physiologic mechanism contributing to muscle power deficits and mobility limitations with advancing age.”
Quote in the paperSubstantial claim - Premisecitation
Mobility-limited elders had significantly lower muscle mass compared to healthy middle-aged subjects (−25%) and healthy older participants (−13%).
“Corresponding differences in muscle mass were also quantified using computed tomography, with mobility-limited elders possessing significantly lower muscle mass compared to healthy middle-aged subjects (− 25%) and healthy older participants (− 13%).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [31]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Interpretationcitation
The greater decline in muscle performance than in muscle mass suggests a decline in muscle quality.
“suggesting a decline in muscle quality.”
Quote in the paperSubstantial claim - Premisecitation
In 34 mobility-limited elders with deficits in leg extensor muscle power, mid-thigh muscle size, and composition, surviving muscle fibers partially compensated for major age-related losses at the whole muscle level through maintenance and preservation of single muscle fiber size and contractile function.
“We recently evaluated intrinsic single fiber properties in 34 mobility-limited elders with significant deficits in leg extensor muscle power, mid-thigh muscle size and composition (31). It was evident that the surviving muscle fibers in the mobility-limited elders partially compensated for the major age-related losses at the whole muscle level through maintenance and preservation of single muscle”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [31]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
The decline in muscle performance (strength) was on average 3-fold higher than the loss of muscle mass over the period.
“This investigation also noted that the decline in muscle performance (muscle strength) was on average 3-fold higher than the loss of muscle mass over this period, suggesting a decline in muscle quality.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [21] source
- Premisecitation
A dose-response relationship was demonstrated between training intensities and improvements in muscle strength (20%) and muscle endurance (185%) at the highest loading intensity (80% 1RM).
“In addition, this study demonstrated a dose-response relationship between the respective training intensities and concomitant improvements in muscle strength (20%) and muscle endurance (185%) elicited when using the highest loading intensity (80% 1RM).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [16] source
- Premisecitation
In this study, high-velocity training was associated with significantly greater improvements in specific leg extensor muscle power (46%) compared to traditional strength training (20%).
“However, in this study, high velocity training was associated with significantly greater improvements in specific leg extensor muscle power (46%) compared to the induced gains from traditional strength training (20%).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [30]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
In older women with mobility limitations, lower extremity power and chair rise time increased to a greater extent after InVEST compared to a slow-velocity program.
“Lower extremity power and chair rise time increased to a greater extent after InVEST compared to the slow velocity program.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [4] source
- Premisecitation
Mobility-limited elders had significant reductions in lower extremity muscle power compared to healthy middle-aged participants (−95%) and healthy older participants (−65%).
“Mobility-limited elders had significant reductions in lower extremity muscle power compared to healthy middle-aged (− 95%) and healthy older participants (− 65%).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [31]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
de Vos et al. found that peak power output improved similarly (14-15%) across all training intensities (20%, 50%, and 80% 1RM) after 12 weeks of high-velocity resistance training in healthy older adults.
“Peak power output improved similarly (14–15%) across all training intensities suggesting that power output can be increased with high velocity training at low and high external resistances.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [16] source
- Premisecitation
There was a significant positive association between SPPB score and rate of EMG rise (r = 0.56) among the older participants.
“This investigation also reported a significant positive association between SPPB score and rate of EMG rise (r = 0.56) among the older participants.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [14] source
- Interpretationreasoning
The discrepancy between the reduction in muscle power and the reduction in muscle size indicates that factors other than muscle atrophy are major contributors to reduced muscle power among mobility-limited participants.
“The magnitude of the discrepancy between the reduction in muscle power and muscle size indicates that other factors, distinct from muscle atrophy, are major contributors to the reductions in muscle power output among mobility-limited participants.”
Quote in the paperSubstantial claim - Premisecitation
InVEST training was associated with substantial increases in SPPB score and gait speed.
“InVEST training was also associated with a substantial increases in SPPB score and gait speed (29).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [29]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Premisecitation
InVEST training elicited significantly greater gains in limb muscle power compared to a conventional progressive resistance training program among mobility-impaired older adults.
“InVEST training elicited significantly greater gains in limb muscle power compared to the conventional program.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [8] source
- Interpretationreasoning
There is now clear evidence that short-term interventions of high-velocity resistance training and other more practical power training modalities using weighted vests can induce substantial improvements in physical functioning and restore mobility in frail older adults.
“There is now clear evidence that short term interventions of high velocity resistance training and other more practical power training modalities using weighted vests can induce substantial improvements in physical functioning and restore mobility in frail older adults.”
Quote in the paperSubstantial claim - Interpretationcitation
There is emerging evidence that higher-velocity lower-intensity resistance training, and several types of exercise programs performed at high velocity, can improve physical functioning in older adults to a greater extent than traditional slow-velocity resistance training.
“In addition, there is emerging evidence that higher velocity lower intensity resistance training, and several types of exercise programs performed at high velocity, can improve physical functioning in older adults to a greater extent than traditional slow velocity resistance training.”
Quote in the paperSubstantial claim - Interpretationreasoning
Power training is safe and well tolerated even in mobility-limited older adults and persons aged over 80 years.
“In general, this type of power training is safe and well tolerated even in mobility-limited older adults and person aged > 80 years.”
Quote in the paperSubstantial claim - Interpretationnone given
Improvements in muscle power are greater with resistance training interventions that emphasize high versus low contraction velocity.
“Improvements in muscle power are greater with resistance training interventions that emphasize high versus low contraction velocity.”
Quote in the paperNot a substantial claim
- May combine two claims. 27
May combine two claims.
PremisecitationRecent randomized trials designed to maximize muscle power output have generally shown that high-velocity power training is feasible, well tolerated, and can effectively improve lower extremity muscle power in healthy older men and women, older women with self-reported disability, older adults with mobility limitations, and older women aged over 80 years.
“However, recent randomized trials designed to maximize muscle power output have generally demonstrated that high velocity power training is feasible, well tolerated, and can effectively improve lower extremity muscle power in healthy older men and women, older women with self-reported disability (18, 25), older adults with mobility limitations (30) and in older women aged over 80 years(12).”
Quote in the paperSubstantial claim1 of 4 sources checked- cites [18]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- cites [25] source
Split into 2 atoms — 0 confirmed, 0 partially supported, 2 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
Checked by a reasoning model — may be wrong.
Experimental — accuracy not yet measured - cites [30]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- cites [12] source
May combine two claims.
PremisecitationIn older adults, a multiple-attempt peak power protocol using pneumatic resistance equipment produces significantly higher performance and better reliability than single-attempt protocols at varying external resistances.
“A recent systematic evaluation of this methodology demonstrated that peak power assessment with a multiple attempt protocol using pneumatic resistance equipment yields significantly higher performance and better reliability than protocols involving a single attempt at varying external resistances on pneumatic equipment in older adults (11).”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [11] source
The Protocol and Instrumentation sections describe multiple leg-press attempts at two resistance levels using pneumatic equipment. But the Data Analysis section compares participant groups, not multiple-attempt with single-attempt protocols; our copy reports no reliability comparison or finding that one protocol yields higher performance. It therefore does not support the claimed systematic evaluation or its comparative result. (LLM, conf=0.88)
Experimental — accuracy not yet measured
May combine two claims.
PremisecitationThe Short Physical Performance Battery has been validated in large-scale epidemiologic studies and offers advantages over self-report measures of functional status in applicability and reproducibility.
“The SPPB has been validated in large-scale epidemiologic studies and offers additional advantages over self-report measures of functional status in terms of applicability and reproducibility.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [22] source
The Introduction describes the SPPB as a standardized performance test and says such tests may offer advantages over self-report measures in reproducibility and applicability. It does not state that the SPPB was validated in large-scale epidemiologic studies, and it hedges the claimed advantages. (LLM, conf=0.84)
Experimental — accuracy not yet measured
May combine two claims.
PremisecitationWhen muscle power is measured across external resistances from 40% to 90% of one-repetition maximum, peak power is usually produced at about 70% of one-repetition maximum, while maximal contraction velocity usually occurs at 40% of one-repetition maximum.
“When muscle power is assessed across a range of external resistances (40%–90% of one repetition maximum (1RM)), peak muscle power is typically yielded at approximately 70% of the 1RM while maximal contraction velocity typically occurs at the lowest external resistance (40% of 1RM)(11, 15, 18).”
Quote in the paperSubstantial claim1 of 3 sources checkedMay combine two claims.
PremisecitationLower extremity pneumatic resistance training equipment provides an accurate and valid way to assess muscle power output.
“Evaluation of muscle power output using lower extremity pneumatic resistance training equipment has recently emerged as an accurate and valid muscle power assessment modality, particularly as this methodology can reliably capture the force and velocity components of muscle power output(18, 30).”
Quote in the paperSubstantial claim1 of 2 sources checked- cites [18] source
The Methods (Impairment Measures; page unavailable) describe a pneumatic leg press that calculates peak power and report that similar methods have shown high reliability. But the Discussion (Limitations; page unavailable) says velocity was derived rather than measured directly, and the paper does not establish the claimed accuracy or validity of capturing both force and velocity. (LLM, conf=0.86)
Experimental — accuracy not yet measured - cites [30]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationIn elderly community-dwelling women with self-reported disability, peak muscle power was superior to muscle strength and aerobic capacity in determining functional status and independently predicted functional dependency after accounting for neuropsychological and health status indicators.
“Peak muscle power (r = 0.47) was superior to muscle strength (r = 0.43) and aerobic capacity (r = 0.40) in determining functional status and independently predicted functional dependency even after accounting for additional neuropsychological and health status indicators.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [19] source
Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
Experimental — accuracy not yet measured
May combine two claims.
PremisecitationA 12-week program of high-velocity resistance training resulted in a 22% increase in leg power with a corresponding increase of 20 meters in total distance walked during the six-minute walk test and a 0.7 unit increase in SPPB score in healthy older adults, and these improvements were greater than those from a self-paced walking program.
“A 12-week program of high velocity resistance training resulted in a 22% increase in leg power with a corresponding increase of 20 meters in total distance walked during the six-minute walk test and a 0.7 unit increase in SPPB score in healthy older adults (17). These improvements in function were greater than those elicited from a self-paced walking program.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [17] source
Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.
Experimental — accuracy not yet measured
May combine two claims.
PremisecitationBottaro et al. reported that 10 weeks of high-velocity resistance training significantly improved several functional performance measures after modest improvements in leg muscle power in sedentary older males, while traditional resistance training had no effect on the functional parameters assessed.
“Similarly, Bottaroet al.(10)also reported that 10 weeks of high velocity resistance training significantly improved several functional performance measures after modest improvements in leg muscle power in sedentary older males. An intervention of traditional resistance training had no effect of the functional parameters assessed in this study.”
Quote in the paperSubstantial claim1 of 1 sources checked- cites [10] source
Split into 2 atoms — 0 confirmed, 0 partially supported, 0 disputed, 0 misattributed, 2 unverifiable. Expand the claim to see per-atom verdicts.
Experimental — accuracy not yet measured
May combine two claims.
InterpretationcitationThe multiple-attempt protocol maximizes maximal contraction velocity and muscle power output and is feasible for assessing lower extremity muscle power in frail older populations.
“This multiple attempt protocol maximizes the achievement of maximal contraction velocity and subsequent maximal muscle power output and is feasible for the assessment of lower extremity muscle power in frail older populations.”
Quote in the paperNot a substantial claimMay combine two claims.
InterpretationreasoningLimb contraction velocity has emerged as an important rehabilitative impairment and a specific target for therapeutic intervention.
“This investigation also highlighted the emergence of limb contraction velocity as an important rehabilitive impairment and specific target for therapeutic intervention.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationIn frail institutionalized elders, leg extensor peak power predicted chair rise performance, stair climbing, and gait speed.
“The seminal investigation by Bassey and coworkers (2) examined the contribution of muscle power to various functional tasks in frail institutionalized elders and demonstrated that leg extensor peak power was predictive of chair rise performance, stair climbing and gait speed.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [2] source
May combine two claims.
PremisecitationAge-related decrements in muscle power production are attributed to changes in muscle quantity and quality, including loss of muscle mass, altered properties of individual muscle fibers, selective reduction in the number and size of type II fibers, increased muscle fat infiltration, changes in neuromuscular function, muscle architecture, hormonal status, protein synthesis, and inflammatorymediator
“Such factors include a quantitative loss of muscle mass and alterations in the properties of individual muscle fibers, in particular, the selective reduction in the number and size of type II muscle fibers with advancing age which have the ability to generate four times the power output of type I fibers (24). Additionally, muscle power loss in older adults is influenced by increases in muscle fat”
Quote in the paperSubstantial claim0 of 2 sources checkedMay combine two claims.
PremisecitationReduced muscle power in older adults is attributed to a quantitative loss of muscle mass, changes in muscle composition, reduced muscle quality, altered individual muscle fiber contractile properties, and changes in neuromuscular function.
“The underlying physiological mechanisms that contribute to this reduction in muscle power output among older adults include: a quantitative decline in muscle mass (sarcopenia), changes in muscle composition, muscle quality (reduced muscle strength per unit muscle mass), individual muscle fiber contractile properties and alterations in neuromuscular function(1, 24).”
Quote in the paperSubstantial claim0 of 2 sources checkedMay combine two claims.
PremisecitationAmong older adults with low muscle power, 16 weeks of high-velocity power training elicited significant improvements in a battery of whole body functional performance tasks, and these gains were significantly greater than those from traditional strength training.
“Among older adults with low muscle power, 16 weeks of high velocity power training elicited significant improvements in a battery of whole body functional performance tasks(27). These gains were significantly greater than those elicited after a corresponding program of traditional strength training (27).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [27]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationTwelve weeks of explosive heavy resistance training at 75-80% 1RM produced substantial improvements in muscle power (28%) and marked gains in rapid muscle force generating characteristics in healthy older women aged 80-89 years.
“More recently, 12 weeks of explosive heavy resistance training,with a loading intensity of 75–80% 1RM,demonstrated substantial improvements in muscle power (28%) and marked gains in rapid muscle force generating characteristics in healthy older woman aged 80-89 years(12).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [12] source
May combine two claims.
PremisecitationSayers et al. noted modest improvements in dynamic balance and stair climbing performance after large improvements in muscle power following 16 weeks of high-velocity power training in older women with self-reported disability, but equivalent improvements in functional performance were observed in the traditional resistance training group.
“Sayers et al. (32)evaluated 16 weeks of high velocity power training in older women with self-reported disability and noted modest improvements in dynamic balanceand stair climbing performance after large improvements in muscle power. However, equivalent improvements in functional performance were observed in the group randomized to traditional resistance training.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [32]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationBean et al. reported that a 12-week weighted stair climbing program increased leg power by 17% with a corresponding 12% increase in stair climbing power, and significant improvements in stair climb time and SPPB scores, although these gains were not statistically greater compared to a walking intervention.
“They reported that the stair climbing intervention increased leg power by 17% with a corresponding 12% increase in stair climbing power. Significant improvements in stair climb time and SPPB scores were observed, although these gains were not statistically greater compared to those observed following a walking intervention.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [3] source
May combine two claims.
PremisecitationReid et al. reported significant differences in specific leg extensor muscle power among mobility-limited participants, while no differences were evident for measures of specific muscle strength across the three study groups.
“Reid et al.(31) also quantified indices of muscle quality (muscle strength and power normalized to muscle CSA) and reported significant differences in specific leg extensor muscle power among the mobility-limited participants while no differences were evident for measures of specific muscle strength across the three study groups evaluated.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [31]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationOrr et al. reported improvements in measures of dynamic balance in high-functioning older men and women randomized to 8-12 weeks of high-velocity resistance training compared to an inactive control group, with power training at low intensity (20% 1RM) associated with the greatest improvements in balance.
“Orr et al. (28) reported improvements in measures of dynamic balance in high functioning older men and women randomized to 8–12 weeks of high velocity resistance training and compared to an inactive control group. Power training performed at low intensity (20% of 1RM) was associated with the greatest improvements in balance performance compared to training performed at 50% and 80% of the 1RM.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [28]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationAmong older adults with mobility limitations, a 12-week high-velocity resistance training intervention increased lower extremity muscle power by about 25%, comparable to traditional slow-velocity strength training (about 21%).
“Among older adults with mobility-limitations, a 12-week high-velocity resistance training intervention increased lower extremity muscle power (~25%), although these gains were comparable to improvements resulting from traditional slow velocity strength training in this population (~21%)(30).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [30]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationHenwood et al. demonstrated similar improvements in muscle power with both high-velocity varied resistance training and strength training after a 24-week intervention, accompanied by better performance on stair climb and chair rise time, although the magnitude of these improvements did not differ between intervention groups.
“They demonstrated similar improvements in muscle power with both training protocols after a 24-week intervention period. These gains were also accompanied by better performance on several functional measures, including stair climb and chair rise time, although the magnitude of these improvements were not different between intervention groups.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [23] source
May combine two claims.
PremisecitationClark and colleagues demonstrated reductions in the rate of neuromuscular activity and impaired acceleration during dynamic leg extensions in mobility-limited elders.
“Clark and colleagues (14)also demonstrated reductions in the rate of neuromuscular activity and impaired acceleration during dynamic leg extensions in mobility limited elders.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [14] source
May combine two claims.
PremisecitationIn relatively healthy older subjects, previous studies reported a 14.7% reduction in thigh muscle cross-sectional area after a 12-year follow-up and a 5.6% reduction after a 9-year follow-up.
“previous studies have reported a significant reduction of 14.7% in thigh muscle cross sectional area (CSA) after a 12 year follow-up period (mean initial age: 65 yrs) and a 5.6% reduction after an 9 year follow-up period (mean initial age: 71 yrs) (20).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [20] source
May combine two claims.
Interpretationown dataNeuromuscular activation impairments may reduce movement velocity and muscle coordination, leading to a reduction or longer time to reach peak force, and thus a decline in muscle power generation.
“Neuromuscular activation impairments may impact movement velocity and muscle coordination leading to a reduction or a longer time to reach peak force, and thus a decline in muscle power generation.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationMobility-limited elders demonstrated significant impairments in torque, power, and agonist muscle activation, with the greatest deficits at the fastest movement velocities.
“mobility-limited elders demonstrated significant impairments in torque, power and agonist muscle activation, with the greatest deficits elicited at the fastest movement velocities (Figure 2 and 3).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [13] source
May combine two claims.
PremisecitationSubstantial improvements in SPPB score and self-reported function were induced after InVEST, although these improvements were not significantly greater than the traditional resistance training program.
“Substantial improvements in SPPB score and self reported function were also induced after InVEST, although these improvements were not significantly greater than the traditional resistance training program.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [8] source
May combine two claims.
InterpretationreasoningExercise interventions targeted at improving lower extremity muscle power have been well-tolerated, safe, and effective, even among frail older adults.
“Exercise interventions targeted at improving lower extremity muscle power have been well-tolerated, safe and effective, even among frail older adults.”
Quote in the paperNot a substantial claim
The paper relies on this without support.
Among older adults with mobility limitations, there is a paucity of information on the specific underlying physiological mechanisms that contribute to the loss of muscle power.
“However, among older adults with mobility limitations, a paucity of information exists on the specific underlying physiological mechanisms that contribute to the loss of muscle power.”
The paper relies on this without support.
No studies have examined the longitudinal changes in muscle mass among mobility-limited older adults.
“To date, no studies have examined the longitudinal changes in muscle mass among mobility-limited older adults.”
The paper relies on this without support.
A distinct biological basis for the precipitous decline in muscle power with aging has yet to be determined.
“A distinct biological basis for the precipitous decline in muscle power with aging has yet to be determined.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Muscle power shows larger declines with ageing compared with muscle strength.
“however, muscle power shows larger declines with ageing compared with muscle strength [138].”
From Minimalist Training: Is Lower Dosage or Intensity Resistance Training Effective to Improve Physical Fitness? A Narrative Review (2024) · cites this paper as [138]
Muscle power is a critical component of functional performance in older individuals.
“Consequently, muscle power (the product of force and velocity) is a critical component of functional performance in older individuals 23,24 that declines faster than strength over time, 25,26 with reductions of up to 6% per year in people aged . 70 years. 27”
From High-velocity power training has similar effects to traditional resistance training for functional performance in older adults: a systematic review (2023) · cites this paper as [23]
There are strong associations between functional capacity test performance, muscle power output, and rate of force development in healthy older adults, and explosive resistance training has become an essential intervention to improve functional capacity in older adults, including those who are frail.
“Additionally, owing to the strong associations between functional capacity test performance, muscle power output, and rate of force development in healthy older adults [199,202,397,464], explosive resistance training (power training) has become an essential intervention to improve functional capacity in older adults, including those who are frail [85,88].”
From Global consensus on optimal exercise recommendations for enhancing healthy longevity in older adults (ICFSR) (2025) · cites this paper as [199]
The ability to perform daily activities is closely linked to muscle power output and the rate of force development, with strong correlations between these metrics and performance in functional capacity tests in healthy older adults.
“The ability to perform daily activities is closely linked to muscle power output and the rate of force development [[199], [200], [201]], with research showing strong correlations between these metrics and performance in functional capacity tests in healthy older adults [[199], [200], [201]].”
From Global consensus on optimal exercise recommendations for enhancing healthy longevity in older adults (ICFSR) (2025) · cites this paper as [199]
Owing to strong associations between functional capacity test performance, muscle power output, and rate of force development in healthy older adults, explosive resistance training has become an essential intervention to improve functional capacity in older adults, including those who are frail.
“Additionally, owing to the strong associations between functional capacity test performance, muscle power output, and rate of force development in healthy older adults [199,202,397,464], explosive resistance training (power training) has become an essential intervention to improve functional capacity in older adults, including those who are frail [85,88].”
From Global consensus on optimal exercise recommendations for enhancing healthy longevity in older adults (ICFSR) (2025) · cites this paper as [199]
Sarcopenia becomes increasingly prevalent with advancing age; 13-24% under 70 years but more than 50% over 80 years.
“Sarcopenia, defined as a loss of muscle strength/power with ageing due to changes in the quality and quantity of muscle tissue, becomes increasingly prevalent with advancing age; 13–24% under 70 years but >50% over 80 years.42”
From Reduced physical activity in young and older adults: Metabolic and musculoskeletal implications (2019) · cites this paper as [42]
Aging muscle appears to undergo a fast-to-slow fiber-type shift, hypothesized to reduce whole muscle power and increase fall risk.
“aging muscle appears to undergo a fast-to-slow fiber-type shift [91], that is hypothesized to reduce whole muscle power and increase fall risk [92, 93].”
From Gut Microbiota Contribute to Age-Related Changes in Skeletal Muscle Size, Composition, and Function: Biological Basis for a Gut-Muscle Axis (2018) · cites this paper as [93]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Two studies are described as testing multiple training intensities
MinorThe paper says only one study examined high-velocity training at varying resistances, identifying de Vos et al. But it also describes Orr et al. as comparing high-velocity training at 20%, 50%, and 80% of one-repetition maximum.
“only one study to date has examined high velocity training at varying external resistances. de Voset al. (16) examined changes in leg power in response to 12 weeks of high velocity resistance training in healthy older adults randomized to one of three different external resistances: 20% 1 RM; 50% 1 RM; or 80% 1 RM.”
“Orr et al. (28) reported improvements in measures of dynamic balance in high functioning older men and women randomized to 8–12 weeks of high velocity resistance training and compared to an inactive control group. Power training performed at low intensity (20% of 1RM) was associated with the greatest improvements in balance performance compared to training performed at 50% and 80% of the 1RM.”
Conflicting leg-power gains attributed to the same study
MinorThe paper attributes a 50-141% increase in leg power to a 12-week intervention in study (17), but later attributes a 22% increase in leg power to a 12-week intervention in that same study. It does not identify different measures that would explain the figures.
“Earleset al. (17) reported a 50–141% increase in leg power following 12 weeks of high velocity resistance training in combination with moderate intensity non-resistance exercise compared to a structured walking program in older men and women.”
“A 12-week program of high velocity resistance training resulted in a 22% increase in leg power with a corresponding increase of 20 meters in total distance walked during the six-minute walk test and a 0.7 unit increase in SPPB score in healthy older adults (17).”
Cites
Guralnik, J. M., Simonsick, E. M., Ferrucci, L., Glynn, R. J., Berkman, L. F., Blazer, D. G., Scherr, P. A., & Wallace, R. B. (1994) · Journal of Gerontology · doi:10.1093/geronj/49.2.m85 · Cited by 9,792 · cited 2× · see citing works
“To overcome this bias, standardized and objective tests of physical performance such as the Short Physical Performance Battery test (SPPB) have been developed(22).”
Verbrugge, L. M., & Jette, A. M. (1994) · Social Science & Medicine · doi:10.1016/0277-9536(94)90294-1 · Cited by 3,310 · cited 2× · see citing works
“According to the disablement model, impairment refers to a loss or abnormality at the tissue, organ, and body system level (35).”
BackgroundMethodGoodpaster, B. H., Park, S. W., Harris, T. B., Kritchevsky, S. B., Nevitt, M., Schwartz, A. V., Simonsick, E. M., Tylavsky, F. A., Visser, M., Newman, A. B., et al. (2006) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/61.10.1059 · Cited by 3,083 · cited 1× · see citing works
“(21) examined the longitudinal changes (È3 yr) in muscle mass among 1880 relatively healthy older adults in the Health, Aging and Body Composition Study (mean initial age, 73.”
BackgroundMeaningful change and responsiveness in common physical performance measures in older adults.
Perera, S., Mody, S. H., Woodman, R. C., & Studenski, S. A. (2006) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2006.00701.x · Cited by 2,513 · cited 3× · see citing works
“Many of the more recent studies examining the relationship between muscle power on functional performance in older adults have used the SPPB as study eligibility criteria or as a study outcome measure (4,7,14,15,29).”
BackgroundHuman aging, muscle mass, and fiber type composition.
Evans, W. J., & Lexell, J. (1995) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/50a.special_issue.11 · Cited by 1,308 · cited 3× · see citing works
“Additionally, muscle power loss in older adults is influenced by increases inmuscle fat infiltration, changes in neuromuscular function, muscle architecture, alterations in hormonal status, protein synthesis, and inflammatory mediators (1,24).”
BackgroundLeg extensor power and functional performance in very old men and women.
Bassey, E. J., Fiatarone, M. A., O'neill, E. F., Kelly, M., Evans, W. J., & Lipsitz, L. A. (1992) · Clinical Science · doi:10.1042/cs0820321 · Cited by 943 · cited 1× · see citing works
“The seminal investigation by Bassey and coworkers (2) examined the contribution of muscle power to various functional tasks in frail institutionalized elders and demonstrated that leg extensor peak power was predictive of chair rise performance, stair climbing, and gait speed.”
BackgroundAagaard, P., Suetta, C., Caserotti, P., Magnusson, S. P., & Kjær, M. (2010) · Scandinavian Journal of Medicine & Science in Sports · doi:10.1111/j.1600-0838.2009.01084.x · Cited by 709 · cited 3× · see citing works
“Additionally, muscle power loss in older adults is influenced by increases inmuscle fat infiltration, changes in neuromuscular function, muscle architecture, alterations in hormonal status, protein synthesis, and inflammatory mediators (1,24).”
BackgroundAssociation of Muscle Power With Functional Status in Community-Dwelling Elderly Women
Foldvari, M., Clark, M., Laviolette, L. C., Bernstein, M. A., Kaliton, D., Castaneda, C., Pu, C. T., Hausdorff, J. M., Fielding, R. A., & Singh, M. A. F. (2000) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/55.4.m192 · Cited by 653 · cited 1× · see citing works
“(19) further explored the relationships between muscle power, muscle strength and other physiologic factors relevant to functional independence among 80 elderly community-dwelling women with self-reported disability.”
Self-citationThe relationship between leg power and physical performance in mobility-limited older people
Md, J. F. B., Kiely, D. K., Herman, S., Leveille, S. G., Mizer, K., Frontera, W. R., & Fielding, R. A. (2002) · Journal of the American Geriatrics Society · doi:10.1046/j.1532-5415.2002.50111.x · Cited by 605 · cited 1× · see citing works
“(5) examined the relative contribution of muscle power and strength on various measures of physical performance among community-dwelling older men and women with objective mobility-limitations.”
Self-citationBean, J. F., Leveille, S. G., Kiely, D. K., Bandinelli, S., Guralnik, J. M., & Ferrucci, L. (2003) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/58.8.m728 · Cited by 529 · cited 1× · see citing works
“(9) replicated these observations in a large cohort of 1032 older adults from the Invecchiare in Chianti (InCHIANTI) study and demonstrated that impairments in muscle power were more influential proximal determinants of mobility performance than impairments in muscle strength.”
ResultHigh-Velocity Resistance Training Increases Skeletal Muscle Peak Power in Older Women
Fielding, R. A., LeBrasseur, N. K., Cuoco, A., Bean, J., Mizer, K., & Singh, M. A. F. (2002) · Journal of the American Geriatrics Society · doi:10.1046/j.1532-5415.2002.50159.x · Cited by 446 · cited 4× · see citing works
“When muscle power is assessed across a range of external resistances (40%Y90% of one repetition maximum (1RM)), peak muscle power is yielded at approximately 70% of the 1RM, whereas maximal contraction velocity typically occurs at the lowest external resistance (40% of 1RM) (11,15,18).”
BackgroundMethodInfluentialSelf-citationEffect of strength and power training on physical function in community-dwelling older adults.
Miszko, T. A., Cress, M. E., Slade, J. M., Covey, C. J., Agrawal, S. K., & Doerr, C. E. (2003) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/58.2.m171 · Cited by 391 · cited 2× · see citing works
“These gains were significantly greater than those elicited after a corresponding program of traditional strength training (27).”
BackgroundResultMuscle power of the ankle flexors predicts functional performance in community-dwelling older women.
Suzuki, T., Bean, J. F., & Fielding, R. A. (2001) · Journal of the American Geriatrics Society · doi:10.1046/j.1532-5415.2001.49232.x · Cited by 343 · see citing works
Self-citationPower training improves balance in healthy older adults.
Orr, R., de Vos, N. J., Singh, N. A., Ross, D. A., Stavrinos, T. M., & Fiatarone-Singh, M. A. (2006) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/61.1.78 · Cited by 337 · cited 1× · see citing works
“(28) reported improvements in measures of dynamic balance in high functioning older men and women randomized to 8Y12 wk of high-velocity resistance training compared with an inactive control group.”
BackgroundOptimal load for increasing muscle power during explosive resistance training in older adults.
de Vos, N. J., Singh, N. A., Ross, D. A., Stavrinos, T. M., Orr, R., & Fiatarone Singh, M. A. (2005) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/60.5.638 · Cited by 309 · cited 1× · see citing works
“(16) examined changes in leg power in response to 12 wk of high velocity resistance training in healthy older adults randomized to one of three different external resistances: 20% 1RM, 50% 1RM, or 80% 1RM.”
BackgroundBottaro, M., Machado, S. N., Nogueira, W., Scales, R., & Veloso, J. (2007) · European Journal of Applied Physiology · doi:10.1007/s00421-006-0343-1 · Cited by 305 · cited 1× · see citing works
“(10) also reported that 10 wk of high-velocity resistance training significantly improved several functional performance measures after modest improvements in leg muscle power in sedentary older male subjects.”
BackgroundMuscle fiber size and function in elderly humans: a longitudinal study
Frontera, W. R., Reid, K. F., Phillips, E. M., Krivickas, L. S., HUGHES, V. A., Roubenoff, R., & Fielding, R. A. (2008) · Journal of Applied Physiology · doi:10.1152/japplphysiol.90332.2008 · Cited by 285 · cited 3× · see citing works
“Several studies have shown that single muscle fiber contractile function may be preserved in older adults despite the presence of significant reductions in whole muscle size and composition (20).”
BackgroundResultInfluentialSelf-citationImpact of muscle power and force on gait speed in disabled older men and women
Cuoco, A., Callahan, D. M., Sayers, S., Frontera, W. R., Bean, J., & Fielding, R. A. (2004) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/59.11.1200 · Cited by 283 · cited 4× · see citing works
“When muscle power is assessed across a range of external resistances (40%Y90% of one repetition maximum (1RM)), peak muscle power is yielded at approximately 70% of the 1RM, whereas maximal contraction velocity typically occurs at the lowest external resistance (40% of 1RM) (11,15,18).”
BackgroundInfluentialSelf-citationStrength versus muscle power-specific resistance training in community-dwelling older adults.
Henwood, T. R., Riek, S., & Taaffe, D. R. (2008) · The Journals of Gerontology: Series A · doi:10.1093/gerona/63.1.83 · Cited by 265 · cited 1× · see citing works
“(23) also compared high-velocity varied resistance training to strength training on functional performance in healthy older adults.”
BackgroundCaserotti, P., Aagaard, P., Buttrup Larsen, J., & Puggaard, L. (2008) · Scandinavian Journal of Medicine & Science in Sports · doi:10.1111/j.1600-0838.2007.00732.x · Cited by 254 · see citing works
Velocity training induces power-specific adaptations in highly functioning older adults.
Earles, D. R., Judge, J. O., & Gunnarsson, O. T. (2001) · Archives of Physical Medicine and Rehabilitation · doi:10.1053/apmr.2001.23838 · Cited by 226 · cited 2× · see citing works
“7 unit increase in SPPB score in healthy older adults (17).”
Bean, J. F., Herman, S., Kiely, D. K., Frey, I. C., Leveille, S. G., Fielding, R. A., & Frontera, W. R. (2004) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2004.52222.x · Cited by 218 · cited 3× · see citing works
“In older women with mobility limitations, the same investigators also examined the effects of a program of weighted vest exercise performed at a high velocity (Increased Velocity Exercise Specific to Task (InVEST)) compared with a program of upper and lower body chair-based exercises performed at slow velocity (4).”
BackgroundSelf-citationLower extremity muscle function after strength or power training in older adults.
Marsh, A. P., Miller, M. E., Rejeski, W. J., Hutton, S. L., & Kritchevsky, S. B. (2009) · Journal of Aging and Physical Activity · doi:10.1123/japa.17.4.416 · Cited by 155 · cited 2× · see citing works
“The comparative effects of 12 wk of high-velocity resistance training and traditional strength training on lower extremity muscle power were evaluated in 45 older adults with self-reported mobility limitations (25).”
BackgroundReid, K. F., Callahan, D. M., Carabello, R. J., Phillips, E. M., Frontera, W. R., & Fielding, R. A. (2008) · Aging Clinical and Experimental Research · doi:10.1007/bf03324865 · Cited by 153 · cited 3× · see citing works
“Among older adults with mobility limitations, a 12-wk high-velocity resistance training intervention increased lower extremity muscle power (È25%), although these gains were comparable to improvements resulting from traditional slow velocity strength training in this population (È21%) (30).”
BackgroundMethodSelf-citationWeighted Stair Climbing in Mobility‐Limited Older People: A Pilot Study
Bean, M., Herman, S. D., Kiely, D. K., Callahan, D. M., Mizer, K., Frontera, W. R., & Fielding, R. A. (2002) · Journal of the American Geriatrics Society · doi:10.1046/j.1532-5415.2002.50160.x · Cited by 148 · cited 1× · see citing works
“(3) compared 12 weeks of a weighted stair climbing program to a walking program in older adults with baseline mobility limitations.”
Self-citationBean, J. F., Kiely, D. K., LaRose, S., O'Neill, E., Goldstein, R., & Frontera, W. R. (2009) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glp056 · Cited by 138 · cited 1× · see citing works
“More recently, Bean and colleagues (8) compared the effects of a 16-wk program of InVEST training with a progressive resistance training program advocated by the National Institute on Aging among mobilityimpaired older adults.”
BackgroundBean, J. F., Kiely, D. K., LaRose, S., Goldstein, R., Frontera, W. R., & Leveille, S. G. (2010) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2010.03155.x · Cited by 126 · cited 2× · see citing works
“In the majority of recent trials that have enrolled mobilitylimited older adults, participants were classified as ‘‘mobilitylimited’’ if a SPPB summary performance score of 9 or lower was obtained (4,6,7,14,15,26).”
BackgroundMethodEffect of leg muscle contraction velocity on functional performance in older men and women.
Sayers, S. P., Guralnik, J. M., Thombs, L. A., & Fielding, R. A. (2005) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2005.53166.x · Cited by 118 · see citing works
Self-citationClark, D. J., Patten, C., Reid, K. F., Carabello, R. J., Phillips, E. M., & Fielding, R. A. (2011) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glq153 · Cited by 108 · cited 4× · see citing works
“In addition to deficits in neuromuscular activity, Clark and colleagues (14) also demonstrated reductions in the rate of neuromuscular activity and impaired acceleration during dynamic leg extensions in mobility-limited elders.”
BackgroundInfluentialSelf-citationImpaired voluntary neuromuscular activation limits muscle power in mobility-limited older adults
Clark, D. J., Patten, C., Reid, K. F., Carabello, R. J., Phillips, E. M., & Fielding, R. A. (2010) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glq012 · Cited by 106 · cited 2× · see citing works
“(13) delineated the relationship between the neuromuscular system and muscle power generation within older adults with mobility limitations, healthy middle-aged adults, and healthy older adults.”
BackgroundSelf-citationReid, K. F., Doros, G., Clark, D. J., Patten, C., Carabello, R. J., Cloutier, G. J., Phillips, E. M., Krivickas, L. S., Frontera, W. R., & Fielding, R. A. (2012) · European Journal of Applied Physiology · doi:10.1007/s00421-011-2200-0 · Cited by 100 · cited 5× · see citing works
“CHANGES IN MUSCLE MASS AND QUALITY Reid et al. (31) performed a comprehensive cross-sectional assessment of the major physiological mechanisms contributing to muscle power deficits within three distinct populations: healthy middle-aged adults (È47 yr), healthy older adults (È74 yr), and older adults with mobility limi…”
InfluentialSelf-citationAssessment of lower extremity muscle power in functionally-limited elders.
Callahan, D., Phillips, E., Carabello, R., Frontera, W. R., & Fielding, R. A. (2007) · Aging Clinical and Experimental Research · doi:10.1007/bf03324689 · Cited by 94 · cited 2× · see citing works
“When muscle power is assessed across a range of external resistances (40%Y90% of one repetition maximum (1RM)), peak muscle power is yielded at approximately 70% of the 1RM, whereas maximal contraction velocity typically occurs at the lowest external resistance (40% of 1RM) (11,15,18).”
BackgroundSelf-citationChanges in Function and Disability After Resistance Training: Does Velocity Matter?: A Pilot Study
Sayers, S. P., Bean, J., Cuoco, A., LeBrasseur, N. K., Jette, A., & Fielding, R. A. (2003) · American Journal of Physical Medicine & Rehabilitation · doi:10.1097/01.phm.0000078225.71442.b6 · Cited by 79 · cited 1× · see citing works
“(32) evaluated 16 wk of high-velocity power training in older women with self-reported disability and noted modest improvements in dynamic balance and stair climbing performance after large improvements in muscle power.”
BackgroundSelf-citationMayson, D. J., Kiely, D. K., LaRose, S. I., & Bean, J. F. (2008) · American Journal of Physical Medicine & Rehabilitation · doi:10.1097/phm.0b013e31818dfee5 · Cited by 75 · cited 2× · see citing works
“More recently, Mayson and coworkers (26) further illustrated the importance of muscle contraction velocity on balance performance.”
BackgroundBean, J. F., Kiely, D. K., LaRose, S., & Leveille, S. G. (2008) · Archives of Physical Medicine and Rehabilitation · doi:10.1016/j.apmr.2008.04.029 · Cited by 50 · cited 3× · see citing works
“Many of the more recent studies examining the relationship between muscle power on functional performance in older adults have used the SPPB as study eligibility criteria or as a study outcome measure (4,7,14,15,29).”
Background
Flagged first, then by citations
Cited by
Sorted by citations
Fragala, M. S., Cadore, E. L., Dorgo, S., Izquierdo, M., Kraemer, W. J., Peterson, M. D., & Ryan, E. D. (2019) · Journal of Strength and Conditioning Research · doi:10.1519/jsc.0000000000003230 · Cited by 1,290 · see citing works
International exercise recommendations in older adults (ICFSR): Expert consensus guidelines
Izquierdo, M., Merchant, R. A., Morley, J. E., Anker, S. D., Aprahamian, I., Arai, H., Aubertin-Leheudre, M., Bernabei, R., Cadore, E. L., Cesari, M., et al. (2021) · The Journal of nutrition, health and aging · doi:10.1007/s12603-021-1665-8 · Cited by 1,247 · see citing works
“Muscle power output and rate of force development are strongly associated with older persons’ capacity to perform activities of daily living (83-85).”
Self-citationSkeletal muscle performance and ageing
Tieland, M., Trouwborst, I., & Clark, B. C. (2018) · Journal of Cachexia, Sarcopenia and Muscle · doi:10.1002/jcsm.12238 · Cited by 904 · see citing works
“cal performance, potentially leading to functional disability and institutionalization.(18)”
Physical activity and exercise: Strategies to manage frailty
Angulo, J., El Assar, M., Álvarez-Bustos, A., & Rodríguez-Mañas, L. (2020) · Redox Biology · doi:10.1016/j.redox.2020.101513 · Cited by 771 · see citing works
The aging neuromuscular system and motor performance
Hunter, S. K., Pereira, H. M., & Keenan, K. G. (2016) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00475.2016 · Cited by 544 · see citing works
“Power: Age-related reductions in maximal power are greater in magnitude than for maximal 339 isometric strength (105, 125, 127, 134, 143).”
InfluentialCadore, E. L., Casas-Herrero, A., Zambom-Ferraresi, F., Idoate, F., Millor, N., Gómez, M., Rodriguez-Mañas, L., & Izquierdo, M. (2014) · AGE · doi:10.1007/s11357-013-9586-z · Cited by 526 · see citing works
“…with advancing age (Izquierdo et al. 1999), and second, as mentioned above, muscle power seems to be more closely associated with performance on functional tests than muscle strength per se in the elderly populations (Cadore and Izquierdo 2013; Reid and Fielding 2012; Casas- Herrero et al. 2013 ).”
BackgroundExercise Promotes Healthy Aging of Skeletal Muscle
Cartee, G. D., Hepple, R. T., Bamman, M. M., & Zierath, J. R. (2016) · Cell Metabolism · doi:10.1016/j.cmet.2016.05.007 · Cited by 483 · see citing works
“Loss of strength appears to be greater in lower than upper limbs (Landers et al., 2001), and a decline inmuscle power far exceeds that of strength (Petrella et al., 2005; Young and Skelton, 1994) and appears to occur more precipitously (Reid and Fielding, 2012).”
BackgroundTrombetti, A., Reid, K. F., Hars, M., Herrmann, F. R., Pasha, E. P., Phillips, E. M., & Fielding, R. A. (2015) · Osteoporosis International · doi:10.1007/s00198-015-3236-5 · Cited by 439 · see citing works
“In particular, FoF may arise at various levels of the disablement process [5] and/or exacerbate this pathway, but it is likely that functional limitations and disability represent mediating conditions between muscle pathology (e.”
BackgroundSelf-citationGrosicki, G. J., Fielding, R. A., & Lustgarten, M. S. (2018) · Calcified Tissue International · doi:10.1007/s00223-017-0345-5 · Cited by 388 · see citing works
“Specifically, aging muscle appears to undergo a fast-to-slow fiber-type shift [91], that is hypothesized to reduce whole muscle power and increase fall risk [92, 93].”
BackgroundSelf-citationSarcopenia and Postoperative Complication Risk in Gastrointestinal Surgical Oncology
Simonsen, C., de Heer, P., Bjerre, E. D., Suetta, C., Højman, P., Pedersen, B. K., Svendsen, L. B., & Christensen, J. F. (2018) · Annals of Surgery · doi:10.1097/sla.0000000000002679 · Cited by 378 · see citing works
“Limitations in 1 or more of these components may cause important functional limitations which are not detectable by assessment of muscle mass alone.(54,55) Several systematic reviews have also demonstrated that an impaired physical or muscle function before surgery is associated with poorer postoperative outcomes incl…”
BackgroundEl Assar, M., Álvarez-Bustos, A., Sosa, P., Angulo, J., & Rodríguez-Mañas, L. (2022) · International Journal of Molecular Sciences · doi:10.3390/ijms23158713 · Cited by 371 · see citing works
“Muscle power has been linked to physical function in older adults [172,173].”
BackgroundFatty infiltration of skeletal muscle: mechanisms and comparisons with bone marrow adiposity
Hamrick, M. W., McGee-Lawrence, M. E., & Frechette, D. M. (2016) · Frontiers in Endocrinology · doi:10.3389/fendo.2016.00069 · Cited by 372 · see citing works
Physiological geroscience: targeting function to increase healthspan and achieve optimal longevity
Seals, D. R., Justice, J. N., & LaRocca, T. J. (2015) · The Journal of Physiology · doi:10.1113/jphysiol.2014.282665 · Cited by 312 · see citing works
“…factors such as motor unit loss/reorganization, sarcopenia (muscle wasting) and decreased physical activity (Morley et al. 2001; Doherty, 2003; Reid & Fielding, 2012; Manini et al. 2013) can eventually lead to functional limitations like reduced mobility and the ability to perform basic…”
BackgroundRamsey, K. A., Rojer, A. G. M., D’Andrea, L., Otten, R. H. J., Heymans, M. W., Trappenburg, M. C., Verlaan, S., Phillips, A. C., Meskers, C. G. M., & Maier, A. B. (2021) · Ageing Research Reviews · doi:10.1016/j.arr.2021.101266 · Cited by 301 · see citing works
“Low physical activity (PA) and high sedentary behavior (SB) present a global health challenge and they are particularly important in older adult populations as PA declines and SB increases with increasing age (Arnardottir et al., 2013; Ortlieb et al., 2014; Reid and Fielding, 2012).”
BackgroundScreening for muscle wasting and dysfunction in patients with chronic kidney disease
Carrero, J. J., Johansen, K. L., Lindholm, B., Stenvinkel, P., Cuppari, L., & Avesani, C. M. (2016) · Kidney International · doi:10.1016/j.kint.2016.02.025 · Cited by 283 · see citing works
Reduced physical activity in young and older adults: Metabolic and musculoskeletal implications
Bowden Davies, K. A., Pickles, S., Sprung, V. S., Kemp, G. J., Alam, U., Moore, D. R., Tahrani, A. A., & Cuthbertson, D. J. (2019) · Therapeutic Advances in Endocrinology and Metabolism · doi:10.1177/2042018819888824 · Cited by 278 · see citing works
Physiological Aging: Links Among Adipose Tissue Dysfunction, Diabetes, and Frailty
Stout, M. B., Justice, J. N., Nicklas, B. J., & Kirkland, J. L. (2017) · Physiology · doi:10.1152/physiol.00012.2016 · Cited by 272 · see citing works
Correa‐de‐Araujo, R., Harris‐Love, M. O., Miljkovic, I., Fragala, M. S., Anthony, B., & Manini, T. M. (2017) · Frontiers in Physiology · doi:10.3389/fphys.2017.00087 · Cited by 267 · see citing works
“This transition would result in muscles with impaired contractile capacity and decreased power (Reid and Fielding, 2012).”
BackgroundStrength and Endurance Training Prescription in Healthy and Frail Elderly
Cadore, E. L. (2014) · Aging and Disease · doi:10.14336/ad.2014.0500183 · Cited by 273 · see citing works
Izquierdo, M., de Souto Barreto, P., Arai, H., Bischoff-Ferrari, H. A., Cadore, E. L., Cesari, M., Chen, L.-K., Coen, P. M., Courneya, K. S., Duque, G., et al. (2025) · The Journal of nutrition, health and aging · doi:10.1016/j.jnha.2024.100401 · Cited by 273 · see citing works
Self-citationFitness Measures and Health Outcomes in Youth
Institute of Medicine (2012) · National Academies Press eBooks · doi:10.17226/13483 · Cited by 263 · see citing works
Billot, M., Calvani, R., Urtamo, A., Sánchez-Sánchez, J. L., Ciccolari-Micaldi, C., Chang, M., Roller-Wirnsberger, R., Wirnsberger, G., Sinclair, A., Vaquero-Pinto, M. N., et al. (2020) · Clinical Interventions in Aging · doi:10.2147/cia.s253535 · Cited by 242 · see citing works
Reid, K. F., Pasha, E., Doros, G., Clark, D. J., Patten, C., Phillips, E. M., Frontera, W. R., & Fielding, R. A. (2014) · European Journal of Applied Physiology · doi:10.1007/s00421-013-2728-2 · Cited by 246 · see citing works
“the ability to successfully generate skeletal muscle power, defined as the product of dynamic muscular force and contraction velocity, is critical for activities that require human movement and locomotion (Bassey et al. 1992; reid and Fielding 2012).”
BackgroundSelf-citationTools in the Assessment of Sarcopenia
Cooper, C. C., Fielding, R. A., Visser, M., van Loon, L. J. C., Rolland, Y., ORWOLL, E. S., Reid, K. F., Boonen, S., Dere, W. H., Epstein, S., et al. (2013) · Calcified Tissue International · doi:10.1007/s00223-013-9757-z · Cited by 246 · see citing works
“[30]; muscle power is a strong predictor of functional mobility and risk of falling among older adults [31].”
Self-citationCadore, E. L., Izquierdo, M., Conceição, M., Radaelli, R., Pinto, R. S., Baroni, B. M., Vaz, M. A., Alberton, C. L., Pinto, S. S., Cunha, G. D. S., et al. (2012) · Experimental Gerontology · doi:10.1016/j.exger.2012.04.002 · Cited by 237 · see citing works
“Furthermore, it has been shown that explosive strength training enhances functional capacity in elderly subjects (Pereira et al., 2012; Reid and Fielding, 2012).”
BackgroundByrne, C., Faure, C., Keene, D. J., & Lamb, S. E. (2016) · Sports Medicine · doi:10.1007/s40279-016-0489-x · Cited by 234 · see citing works
“When viewed alongside evidence demonstrating the longitudinal decline in muscle power occurring at an earlier age and/or at a greater rate than muscle strength [21, 63–71], it is reasonable to argue in favour of muscle power being the primary therapeutic target for resistance-training interventions aimed at enhancing…”
Echo intensity is negatively associated with functional capacity in older women
Rech, A., Radaelli, R., Goltz, F. R., da Rosa, L. H. T., Schneider, C. D., & Pinto, R. S. (2014) · AGE · doi:10.1007/s11357-014-9708-2 · Cited by 220 · see citing works
The role of declining adaptive homeostasis in ageing
Pomatto, L. C. D., & Davies, K. J. A. (2017) · The Journal of Physiology · doi:10.1113/jp275072 · Cited by 223 · see citing works
“Hence, to maintain muscular mass and power output, strength training is an effective intervention within the ageing population (Martel et al. 2006; Reid & Fielding, 2012).”
BackgroundCoelho‐Júnior, H. J., Trichopoulou, A., & Panza, F. (2021) · Ageing Research Reviews · doi:10.1016/j.arr.2021.101395 · Cited by 220 · see citing works
Hortobágyi, T., Lesinski, M., Gäbler, M., VanSwearingen, J. M., Malatesta, D., & Granacher, U. (2015) · Sports Medicine · doi:10.1007/s40279-015-0371-2 · Cited by 204 · see citing works
“Given only one study met our criteria for the review, we were unable to determine the effects of leg power training on gait speed even though recent studies strongly promote this form of intervention for the re-training of the aged neuromuscular system and mobility [68, 72, 147, 156– 158].”
Mobility in Older Community-Dwelling Persons: A Narrative Review
Freiberger, E., Sieber, C. C., & Kob, R. (2020) · Frontiers in Physiology · doi:10.3389/fphys.2020.00881 · Cited by 200 · see citing works
“As it seems, muscle power has an even higher impact on mobility limitations than muscle strength (Reid and Fielding, 2012) and needs to be looked into closely when mobility in older age is investigated.”
BackgroundInfluentialSkeletal muscle homeostasis and plasticity in youth and ageing: impact of nutrition and exercise
Brook, M. S., Wilkinson, D. J., Phillips, B. E., Pérez‐Schindler, J., Philp, A., Smith, K., & Atherton, P. J. (2015) · Acta Physiologica · doi:10.1111/apha.12532 · Cited by 193 · see citing works
“…health, disease and ageing: an overview In constituting ~40% of body weight, skeletal muscle is the largest organ in the body, one of the fundamental roles of skeletal muscle is to maintain skeletal structure and locomotion enabling completion of essential daily activities (Reid & Fielding 2012).”
BackgroundAngulo, J., Assar, M. E., & Rodríguez‐Mañas, L. (2016) · Molecular Aspects of Medicine · doi:10.1016/j.mam.2016.06.001 · Cited by 185 · see citing works
Diagnosing sarcopenia: Functional perspectives and a new algorithm from the ISarcoPRM
Kara, M., Kaymak, B., Frontera, W. R., Ata, A. M., Ricci, V., Ekiz, T., Chang, K. C., Han, D., Michail, X., Quittan, M., et al. (2021) · Journal of Rehabilitation Medicine · doi:10.2340/16501977-2851 · Cited by 183 · see citing works
“Furthermore, with ageing, power declines at a faster rate than strength (121).”
BackgroundFyfe, J. J., Hamilton, D. L., & Daly, R. M. (2022) · Sports Medicine · doi:10.1007/s40279-021-01605-8 · Cited by 172 · see citing works
“gait speed, stair ascending/descending, rising from a chair) with ageing [53, 54], which substantially influences independence and quality-of-life.”
BackgroundMayer, K. P., Bastin, M. L. T., Montgomery-Yates, A. A., Pastva, A. M., Dupont‐Versteegden, E. E., Parry, S. M., & Morris, P. E. (2020) · Critical Care · doi:10.1186/s13054-020-03355-x · Cited by 180 · see citing works
Storer, T. W., Basaria, S., Traustadottir, T., Harman, S. M., Pencina, K., Li, Z., Travison, T. G., Miciek, R., Tsitouras, P., Hally, K., et al. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2016-2771 · Cited by 174 · see citing works
“Because muscle power is more strongly associated with functional performance in activities such as stair climbing, walking, and rising from a chair (22), assessing the effectiveness of anabolic therapies on muscle power is important.”
BackgroundMethodTomlinson, P. B., Joseph, C., & Angioi, M. (2015) · Journal of Science and Medicine in Sport · doi:10.1016/j.jsams.2014.07.022 · Cited by 169 · see citing works
Freiberger, E., Goisser, S., Porzel, S., Volkert, D., Kemmler, W., Sieber, C., & Bollheimer, C. (2015) · Clinical Interventions in Aging · doi:10.2147/cia.s82454 · Cited by 162 · see citing works
“Evidence evolves that muscle power training might have a more pronounced effect on muscle function than strength training.(98,99) Reviews have summarized the effects of power training on independence in activities of daily living(100) and on functional performance,(98,101)”
Physical Exercise in the Oldest Old
Valenzuela, P. L., Castillo‐García, A., Morales, J. S., Izquierdo, M., Serra‐Rexach, J. A., Santos‐Lozano, A., & Lucia, A. (2019) · Comprehensive Physiology · doi:10.1002/cphy.c190002 · Cited by 152 · see citing works
Straight, C. R., Lindheimer, J. B., Brady, A. O., Dishman, R. K., & Evans, E. M. (2016) · Sports Medicine · doi:10.1007/s40279-015-0418-4 · Cited by 162 · see citing works
“Accordingly, resistance training (RT) has been suggested as a safe and effective intervention strategy for preventing the loss of muscle power in adults [23, 25], and position statements by the American College of Sports Medicine (ACSM) [26–28] recommend it for all adults.”
BackgroundInfluentialPerformance Fatigability: Mechanisms and Task SpecificityPreprint
Hunter, S. K. (2017) · Cold Spring Harbor Perspectives in Medicine · doi:10.1101/cshperspect.a029728 · Cited by 164 · see citing works
Filgueira, T. O., Castoldi, Â., Santos, L. E. R., de Amorim, G. J., Fernandes, M. S. D. S., Anastácio, W. D. L. D. N., Campos, E. Z., Santos, T. M., & Souto, F. O. (2021) · Frontiers in Immunology · doi:10.3389/fimmu.2021.587146 · Cited by 152 · see citing works
Frailty Is a Risk Factor for Falls in the Older Adults: A Systematic Review and Meta-Analysis
Yang, Z., Lin, H., Jiang, G.-H., Chu, Y.-H., Gao, J.-H., Tong, Z.-J., & Wang, Z. (2023) · The journal of nutrition health & aging · doi:10.1007/s12603-023-1935-8 · Cited by 159 · see citing works
“Larger body size is usually associated with greater muscular and skeletal capacity, which provides better physical resilience and intrinsic ability (53).”
BackgroundComparison of Handgrip and Leg Extension Strength in Predicting Slow Gait Speed in Older Adults
Fragala, M. S., Alley, D. E., Shardell, M. D., Harris, T. B., McLean, R. R., Kiel, D. P., Cawthon, P. M., Dam, T.-T. L., Ferrucci, L., Guralnik, J. M., et al. (2016) · Journal of the American Geriatrics Society · doi:10.1111/jgs.13871 · Cited by 147 · see citing works
“80) between leg extension strength and other measures of lower extremity strength and power in older adults.(29,36,37) Despite the reported relationship between muscle strength and gait speed, a categorical classification of weakness that is associated with gait speed may be useful clinically.”
BackgroundDuchowny, K. A., Ackley, S. F., Brenowitz, W. D., Wang, J., Zimmerman, S. C., Caunca, M. R., & Glymour, M. M. (2022) · JAMA Network Open · doi:10.1001/jamanetworkopen.2022.18314 · Cited by 151 · see citing works
Reid, K. F., Martin, K. I., Doros, G., Clark, D. J., Hau, C., Patten, C., Phillips, E. M., Frontera, W. R., & Fielding, R. A. (2015) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glu156 · Cited by 146 · see citing works
“In recent years, recognition of the importance of improving the muscle-power generating capacity of skeletal muscle has given rise to studies in which more powerful, high-velocity movements are employed during progressive resistance training interventions in older participants (3,4).”
InfluentialSelf-citationDietary astaxanthin: an excellent carotenoid with multiple health benefits
Cao, Y., Yang, L., Qiao, X., Xue, C., & Xu, J. (2021) · Critical Reviews in Food Science and Nutrition · doi:10.1080/10408398.2021.1983766 · Cited by 148 · see citing works
Protein Intake and Frailty: A Matter of Quantity, Quality, and Timing
Coelho‐Júnior, H. J., Marzetti, E., Picca, A., Cesari, M., Uchida, M. C., & Calvani, R. (2020) · Nutrients · doi:10.3390/nu12102915 · Cited by 145 · see citing works
“These fibers have greater content and higher activity of myosin ATPase and glycolytic enzymes in comparison to type I muscle fibers [33], which allows them to produce maximal strength and power and influence mobility [34,35].”
BackgroundMuscle wasting and aging: Experimental models, fatty infiltrations, and prevention
Brioche, T., Pagano, A. F., Py, G., & Chopard, A. (2016) · Molecular Aspects of Medicine · doi:10.1016/j.mam.2016.04.006 · Cited by 129 · see citing works
“Skeletal muscle plays a central role in locomotion enabling a person to perform activities of daily living, posture maintenance, and balance (Reid and Fielding, 2012).”
BackgroundBeijersbergen, C. M. I., Granacher, U., Vandervoort, A. A., DeVita, P., & Hortobágyi, T. (2013) · Ageing Research Reviews · doi:10.1016/j.arr.2013.03.001 · Cited by 136 · see citing works
Mitchell, C. J., Milan, A. M., Mitchell, S. M., Zeng, N., Ramzan, F., Sharma, P., Knowles, S. O., Roy, N. C., Sjödin, A., Wagner, K.-H., et al. (2017) · The American Journal of Clinical Nutrition · doi:10.3945/ajcn.117.160325 · Cited by 132 · see citing works
The Importance of Resistance Exercise Training to Combat Neuromuscular Aging
Lavin, K. M., Roberts, B. M., Fry, C. S., Moro, T., Rasmussen, B. B., & Bamman, M. M. (2019) · Physiology · doi:10.1152/physiol.00044.2018 · Cited by 131 · see citing works
Kelly, N. A., Ford, M. P., Standaert, D. G., Watts, R. L., Bickel, C. S., Moellering, D. R., Tuggle, S. C., Williams, J. Y., Lieb, L., Windham, S. T., et al. (2014) · Journal of Applied Physiology · doi:10.1152/japplphysiol.01277.2013 · Cited by 125 · see citing works
“older adults, we (43, 57) and others (15, 61) have documented”
BackgroundThe Case for Retiring Flexibility as a Major Component of Physical Fitness
Nuzzo, J. L. (2020) · Sports Medicine · doi:10.1007/s40279-019-01248-w · Cited by 127 · see citing works
Miller, M. S., Bedrin, N. G., Callahan, D. M., Previs, M. J., Jennings, M. E., Ades, P. A., Maughan, D. W., Palmer, B. M., & Toth, M. J. (2013) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00563.2013 · Cited by 123 · see citing works
“Considering that knee extensor power output is a strong predictor of physical disability (48), a greater reduction in molecular contractile function with age in women may contribute to their increased disability rate (17, 36).”
BackgroundLi, Y., Hanssen, H., Cordes, M., Rossmeissl, A., Endes, S., & Schmidt‐Trucksäss, A. (2014) · European Journal of Sport Science · doi:10.1080/17461391.2014.955129 · Cited by 117 · see citing works
“In view of an ageing population with an increasing prevalence of hypertension (Kearney et al., 2005), and the progressive reduction in muscular power (Reid & Fielding, 2012) and strength (Doherty, 2003), there is an urgent clinical need to define the optimal type of resistance exercise training.”
BackgroundCadore, E. L., Sáez de Asteasu, M. L., & Izquierdo, M. (2019) · Experimental Gerontology · doi:10.1016/j.exger.2019.04.007 · Cited by 112 · see citing works
Short‐term disuse promotes fatty acid infiltration into skeletal muscle
Pagano, A. F., Brioche, T., Arc-Chagnaud, C., Demangel, R., Chopard, A., & Py, G. (2017) · Journal of Cachexia, Sarcopenia and Muscle · doi:10.1002/jcsm.12259 · Cited by 99 · see citing works
“The skeletal muscle is the most abundant tissue in the human body, representing approximately 40% of the body weight and accounting for approximately 30% of the basal energy expenditure.(1) This tissue is constantly adapting due to many intrinsic and environmental stresses, highlighting its high degree of plasticity.”
BackgroundEffects of Jumping Exercise on Muscular Power in Older Adults: A Meta-Analysis
Moran, J., Ramírez‐Campillo, R., & Granacher, U. (2018) · Sports Medicine · doi:10.1007/s40279-018-1002-5 · Cited by 113 · see citing works
Comparison of time‐matched aerobic, resistance, or concurrent exercise training in older adults
Timmons, J. F., Minnock, D., Hone, M., Cogan, K. E., Murphy, J. C., & Egan, B. (2018) · Scandinavian Journal of Medicine and Science in Sports · doi:10.1111/sms.13254 · Cited by 111 · see citing works
Echo intensity independently predicts functionality in sedentary older men
López, P., Wilhelm, E. N., Rech, A., Minozzo, F., Radaelli, R., & Pinto, R. S. (2016) · Muscle & Nerve · doi:10.1002/mus.25168 · Cited by 107 · see citing works
“Research suggests that both strength and rapid force production may be associated with functionality in older populations, and evidence suggests that rapid strength production may be even more important than maximal strength for functionality.(16) Accord-”
BackgroundCasas-Herrero, A., Cadore, E. L., Zambom-Ferraresi, F., Idoate, F., Millor, N., Martínez-Ramirez, A., Gómez, M., Rodriguez-Mañas, L., Marcellán, T., de Gordoa, A. R., et al. (2013) · Rejuvenation Research · doi:10.1089/rej.2013.1438 · Cited by 105 · see citing works
EL, C., & M, I. (2013) · AGE · doi:10.1007/s11357-012-9503-x · Cited by 105 · see citing works
Welch, A. A., Kelaiditi, E., Jennings, A., Steves, C. J., Spector, T. D., & MacGregor, A. (2016) · Journal of Bone and Mineral Research · doi:10.1002/jbmr.2692 · Cited by 100 · see citing works
“impact on functional impairments and influences mobility more than leg strength (47, 56-58).”
BackgroundBeltran‐Valls, M. R., Dimauro, I., Brunelli, A., Tranchita, E., Ciminelli, E., Caserotti, P., Duranti, G., Sabatini, S., Parisi, P., Parisi, A., et al. (2013) · AGE · doi:10.1007/s11357-013-9584-1 · Cited by 103 · see citing works
“Consequently, recent recommendations aimed at reducing age-related neuromuscular and functional loss have identified muscle power as a key target for intervention trials (Reid and Fielding 2011).”
BackgroundPhysical strategies to prevent disuse-induced functional decline in the elderly
Valenzuela, P. L., Morales, J. S., Pareja-Galeano, H., Izquierdo, M., Emanuele, E., de la Villa, P., & Lucia, A. (2018) · Ageing Research Reviews · doi:10.1016/j.arr.2018.07.003 · Cited by 91 · see citing works
Vieira, A. F., Umpierre, D., Teodoro, J. L., Lisboa, S. C., Baroni, B. M., Izquierdo, M., & Cadore, E. L. (2021) · Journal of Strength & Conditioning Research · doi:10.1519/jsc.0000000000003936 · Cited by 94 · see citing works
Sundberg, C. W., Hunter, S. K., Trappe, S. W., Smith, C. S., & Fitts, R. H. (2018) · The Journal of Physiology · doi:10.1113/jp276018 · Cited by 103 · see citing works
Blocquiaux, S., Gorski, T., Roie, E. V., Ramaekers, M., Thienen, R. V., Nielens, H., Delecluse, C., Bock, K. D., & Thomis, M. A. (2020) · Experimental Gerontology · doi:10.1016/j.exger.2020.110860 · Cited by 100 · see citing works
“, 2020) and is considered a good determinant of physical functioning in older adults (Reid and Fielding, 2012).”
BackgroundSarcopenia definition: Does it really matter? Implications for resistance training
Smith, C., Woessner, M. N., Sim, M., & Levinger, I. (2022) · Ageing Research Reviews · doi:10.1016/j.arr.2022.101617 · Cited by 107 · see citing works
Exercise and nutritional approaches to prevent frail bones, falls and fractures: an update
Daly, R. M. (2017) · Climacteric · doi:10.1080/13697137.2017.1286890 · Cited by 99 · see citing works
Izquierdo, M., & Cadore, E. L. (2014) · Current Medical Research and Opinion · doi:10.1185/03007995.2014.908175 · Cited by 97 · see citing works
Vasconcelos, K. S. S., Dias, J. M. D., Araújo, M. C., Pinheiro, A. C., Moreira, B. S., & Dias, R. C. (2016) · Brazilian Journal of Physical Therapy · doi:10.1590/bjpt-rbf.2014.0174 · Cited by 97 · see citing works
Stodden, D. F., True, L. K., Langendorfer, S. J., et al. (2013) · Research Quarterly for Exercise and Sport · doi:10.1080/02701367.2013.814910 · Cited by 96 · see citing works
“in adults (Eisenmann, Wickel, Welk, & Blair, 2005; Reid & Fielding, 2012; Ruiz et al., 2009). Thus, promoting adequate levels of HRF into adulthood is important to reduce chronic disease risk and sustain quality of life. According to Corbin, Lindsey, Welk, and Corbin (2001), HRF refers to the body’s ability to functio…”
BackgroundMuscle Power Training: A Hallmark for Muscle Function Retaining in Frail Clinical Setting
Cadore, E. L., & Izquierdo, M. (2018) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2017.12.010 · Cited by 95 · see citing works
Cadore, E. L., & Izquierdo, M. (2015) · AGE · doi:10.1007/s11357-015-9800-2 · Cited by 93 · see citing works
Effect of nutritional interventions and resistance exercise on aging muscle mass and strength
Candow, D. G., Forbes, S. C., Little, J. P., Cornish, S. M., Pinkoski, C., & Chilibeck, P. D. (2012) · Biogerontology · doi:10.1007/s10522-012-9385-4 · Cited by 90 · see citing works
“These results may have important implications for aging muscle health and maintenance of force production, which is a critical determinant of physical functioning in older adults (Reid and Fielding 2012).”
BackgroundRationale for Strengthening Muscle to Prevent Falls and Fractures: A Review of the Evidence
Bénichou, O., & Lord, S. R. (2016) · Calcified Tissue International · doi:10.1007/s00223-016-0107-9 · Cited by 92 · see citing works
“Muscle power has been shown to be more important than muscle strength not only for physical function [94, 95] but also for dynamic balance [96], which is not surprising since the time needed to take corrective actions when balance is threatened is critical to the ability to conduct an appropriate corrective strategy,…”
Bollinger, L. M. (2017) · Gait & Posture · doi:10.1016/j.gaitpost.2017.05.003 · Cited by 88 · see citing works
Valenzuela, P. L., Maffiuletti, N. A., Tringali, G., Col, A. D., & Sartório, A. (2020) · BMC Musculoskeletal Disorders · doi:10.1186/s12891-020-03228-y · Cited by 88 · see citing works
Longitudinal Decline of Neuromuscular Activation and Power in Healthy Older Adults
Clark, D. J., Pojednic, R. M., Reid, K. F., Patten, C., Pasha, E. P., Phillips, E. M., & Fielding, R. A. (2013) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glt036 · Cited by 87 · see citing works
Self-citationJensen, B. T., Laustsen, S., Jensen, J. B., Borre, M., & Petersen, A. K. (2016) · Supportive Care in Cancer · doi:10.1007/s00520-016-3140-3 · Cited by 87 · see citing works
Comparative Approaches to Understanding the Relation Between Aging and Physical Function
Justice, J. N., Cesari, M., Seals, D. R., Shively, C. A., & Carter, C. S. (2015) · The Journals of Gerontology Series A · doi:10.1093/gerona/glv035 · Cited by 83 · see citing works
“The assessment of muscle power appears to be a more influential predictor of functional performance in older adults compared to muscle strength (41,43).”
BackgroundThe role of skeletal muscle in the pathophysiology and management of knee osteoarthritis
Krishnasamy, P., Hall, M., & Robbins, S. R. (2017) · Lara D. Veeken · doi:10.1093/rheumatology/kex515 · Cited by 85 · see citing works
Paul, S. S., Canning, C. G., Song, J., Fung, V. S. C., & Sherrington, C. (2013) · Clinical Rehabilitation · doi:10.1177/0269215513507462 · Cited by 80 · see citing works
Álvarez‐Barbosa, F., del Pozo-Cruz, J., Cruz, B. D. P., Alfonso‐Rosa, R. M., Rogers, M. E., & Zhang, Y. (2014) · Maturitas · doi:10.1016/j.maturitas.2014.09.010 · Cited by 80 · see citing works
Miller, M. S., Callahan, D. M., & Toth, M. J. (2014) · Frontiers in Physiology · doi:10.3389/fphys.2014.00369 · Cited by 79 · see citing works
“Whole muscle contractile performance has been identified as an important determinant of functional limitations in older adults (Reid and Fielding, 2012).”
BackgroundC57BL/6 life span study: age-related declines in muscle power production and contractile velocity
Graber, T. G., Kim, J., Grange, R. W., McLoon, L. K., & Thompson, L. V. (2015) · AGE · doi:10.1007/s11357-015-9773-1 · Cited by 76 · see citing works
“Movement and physical performance require power production, and in the elderly, a decline in power production represents an important indicator of physical function (Reid and Fielding 2012).”
Hanson, E. D., Sheaff, A. K., Sood, S., Ma, L., Francis, J. D., Goldberg, A. P., & Hurley, B. F. (2012) · The Journals of Gerontology Series A · doi:10.1093/gerona/gls206 · Cited by 78 · see citing works
Sculthorpe, N. F., Herbert, P., & Grace, F. (2017) · Medicine · doi:10.1097/md.0000000000006040 · Cited by 78 · see citing works
“Conclusions: 6 weeks of LfHIIT exercise feasible and effective method to induce clinically relevant improvements in absolute and relative PPO, but does not improve static balance in sedentary ageing men.”
InfluentialAlcázar, J., Guadalupe‐Grau, A., García‐García, F. J., Ara, I., & Alegre, L. M. (2017) · The Journals of Gerontology Series A · doi:10.1093/gerona/glx216 · Cited by 79 · see citing works
“We identified 16 additional studies by checking the reference lists of the included articles and relevant recently published reviews (19,20,24,46).”
BackgroundFife, E., Kostka, J., Kroc, Ł., Guligowska, A., Pigłowska, M., Sołtysik, B. K., Kaufman‐Szymczyk, A., Fabianowska‐Majewska, K., & Kostka, T. (2018) · BMC Geriatrics · doi:10.1186/s12877-018-0888-y · Cited by 77 · see citing works
Alcazar, J., Rodriguez-Lopez, C., Ara, I., Alfaro-Acha, A., Rodríguez-Gómez, I., Navarro-Cruz, R., Losa-Reyna, J., García-García, F. J., & Alegre, L. M. (2018) · Experimental Gerontology · doi:10.1016/j.exger.2018.03.015 · Cited by 77 · see citing works
“Muscle power is widely recognized as a significant and strong predictor of functional ability in older people, and its critical influence on preserving independence in later life is wellknown (Izquierdo and Cadore, 2014; Reid and Fielding, 2012).”
BackgroundZanuso, S., Sacchetti, M., Sundberg, C. J., Orlando, G., Benvenuti, P., & Balducci, S. (2017) · British Journal of Sports Medicine · doi:10.1136/bjsports-2016-096724 · Cited by 78 · see citing works
Bioenergetic basis for the increased fatigability with ageing
Sundberg, C. W., Prost, R. W., Fitts, R. H., & Hunter, S. K. (2019) · The Journal of Physiology · doi:10.1113/jp277803 · Cited by 76 · see citing works
“…the loss in mobility and physical function is a result of the age-related decline in the ability to generate mechanical power (Bassey et al. 1992; Reid & Fielding, 2012) that occurs to a large extent from the age-related loss of muscle mass (Doherty, 2003; Visser et al. 2005), particularly the…”
BackgroundAllen, M. D., Major, B. P., Kimpinski, K., Doherty, T. J., & Rice, C. L. (2013) · Journal of Applied Physiology · doi:10.1152/japplphysiol.01139.2013 · Cited by 77 · see citing works
“and the onset of physical disability (50).”
Glenn, J. M., Gray, M., & Binns, A. (2015) · Journal of Geriatric Physical Therapy · doi:10.1519/jpt.0000000000000072 · Cited by 74 · see citing works
Miller, M. S., Bedrin, N. G., Ades, P. A., Palmer, B. M., & Toth, M. J. (2015) · American Journal of Physiology-Cell Physiology · doi:10.1152/ajpcell.00158.2014 · Cited by 75 · see citing works
Cheng, H., Kong, J., Underwood, C., Petocz, P., Hirani, V., Dawson, B., & O’Leary, F. (2018) · British Journal of Nutrition · doi:10.1017/s0007114517003816 · Cited by 72 · see citing works
- Authors
- Reid, K. F., & Fielding, R. A.
- Affiliations
- Tufts University (US)
- Corresponding author
- Fielding, Roger A.
- Venue
- Exercise and Sport Sciences Reviews
- Published
- 2012-01
- Volume
- 40
- Issue
- 1
- Pages
- 4-12
- ISSN
- 0091-6331 (ISSN-L)
- PMC
- PMC3245773
- OpenAlex
- W2019627189
- Cited by
- 858
- References
- 35
- Citations by year
- 2026: 75 · 2025: 75 · 2024: 71 · 2023: 62 · 2022: 54 · 2021: 83 · 2020: 73 · 2019: 71 · 2018: 56 · 2017: 57 · 2016: 53 · 2015: 46 · 2014: 23 · 2013: 34 · 2012: 11
- FWCI
- 11.25
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Exercise and Sport Sciences Reviews (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (submittedVersion)
- PubMed Central (submittedVersion)
- Topics
- Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
- Health Sciences › Medicine › Psychiatry and Mental health › Fibromyalgia and Chronic Fatigue Syndrome Research
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
- Keywords
- muscle strength, aging, older adults, functional limitations, mobility limitations, disability, lower extremity, physical function
- MeSH terms
- Adult, Aged, Aging, Female, Humans, Male, Middle Aged
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-09-28.
Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-09-28.
Cited sources are checked by gpt-6-sol.
Statistics and arithmetic are recomputed, not judged.
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