Cited by 102Physical Activity and HealthSleep and related disordersCircadian rhythm and melatonin

Joint association of physical activity and sleep duration with risk of all-cause and cause-specific mortality: A population-based cohort study using accelerometry

Open access
Liang, Yannis Yan, Feng, Hongliang, Chen, Yilin, Jin, Xinyi, Xue, Huachen, Zhou, Mingqing, Ma, Huan, Ai, Sizhi +3 more·2023·European Journal of Preventive Cardiology

Abstract

Aims: To investigate the joint association of accelerometer-measured physical activity (PA) and sleep duration with mortality risk. Methods and results: A 7-day accelerometer recording was performed on 92 221 participants (age 62.4 ± 7.8 years; 56.4% women) from the UK Biobank between February 2013 and December 2015. We divided sleep duration into three groups (short, normal, and long), total volume of PA into three levels according to tertiles (high, intermediate, low), and moderate-to-vigorous PA (MVPA) into two groups based on the World Health Organization guidelines. The mortality outcomes were prospectively collected through the death registry. Over a median follow-up of 7.0 years, 3080 adults died, of which 1074 died from cardiovascular disease (CVD) and 1871 from cancer. The associations of PA and sleep duration with mortality risk were all in a curvilinear dose–response pattern (Pnonlinearity <0.001). PA and sleep duration had additive and multiplicative interactions on mortality risk (Pinteraction <0.05). Compared with the participants with guideline-recommended MVPA and normal sleep duration, those without recommended MVPA but having short or long sleep duration were at a higher risk for all-cause mortality [short sleep: hazard ratio (HR) = 1.88; 95% confidence interval (CI), 1.61–2.20; long sleep: HR = 1.69; 95% CI, 1.49–1.90]. A higher volume of PA or recommended MVPA attenuated the detrimental effects of short or long sleep duration on all-cause and CVD mortality risks. Conclusion: MVPA meeting recommendations or a higher volume of PA at any intensity potentially diminished the adverse effects on all-cause and cause-specific mortality associated with short and long sleep duration.

AI snapshot

Written from the paper’s full text.

TL;DR

In a UK Biobank accelerometry cohort, physical activity and sleep duration were independently and jointly associated with all-cause, cardiovascular disease (CVD), and cancer mortality. Meeting moderate-to-vigorous physical activity (MVPA) recommendations or achieving a higher total physical activity volume attenuated the excess mortality risk associated with short or long sleep duration.

Key findings

  • Among 92,221 participants over a median 7.0-year follow-up, 3,080 died (1,074 from CVD, 1,871 from cancer); physical activity and sleep duration showed curvilinear dose-response associations with mortality (P nonlinearity <0.001).
  • Physical activity and sleep duration had additive and multiplicative interactions on mortality risk (P interaction <0.05).
  • Compared with guideline-recommended MVPA and normal sleep duration, participants without recommended MVPA and with short sleep had higher all-cause mortality (HR = 1.88; 95% CI, 1.61–2.20), as did those with long sleep (HR = 1.69; 95% CI, 1.49–1.90).
  • In joint categories, low physical activity plus short sleep (HR = 2.51; 95% CI, 2.07–3.05) and low physical activity plus long sleep (HR = 2.06; 95% CI, 1.80–2.36) were associated with the highest all-cause mortality risk versus high physical activity plus normal sleep; higher physical activity or recommended MVPA attenuated short- and long-sleep mortality risks for all-cause and CVD mortality.

Methods

  • Population-based prospective UK Biobank cohort of 92,221 participants (mean age 62.4 ± 7.8 years; 56.4% women) with valid 7-day wrist-worn Axivity AX3 accelerometer data collected February 2013–December 2015.
  • Sleep duration was categorized as short (<6 h/day), normal (6–8 h/day), or long (>8 h/day); total physical activity was categorized by tertiles as low (≤24.0 mg), intermediate (24.0–30.4 mg), or high (≥30.4 mg); MVPA was categorized as recommended or not recommended according to WHO guidelines (≥150 min moderate, or ≥75 min vigorous, or equivalent per week).
  • Mortality outcomes were prospectively collected from death registries; multivariable Cox proportional hazards models with restricted cubic splines, interaction analyses, and joint-category analyses were used, with sensitivity analyses for missing data, accelerometer wear time, prevalent illness, reverse causation, and COVID-19 censoring.

Limitations

  • Paper-stated limitations include no accounting for prospective changes in sleep duration and physical activity; unusual sleep duration was not age-adjusted; observational residual confounding and reverse causation could not be fully ruled out; covariates were assessed nearly six years before baseline; sedentary behavior was not included due to correlation with physical activity and sleep; only sleep duration, not other sleep patterns, was examined; and the UK Biobank sample is not representative of the UK population.
  • Evident from the text: the reported all-cause mortality HR for MVPA exceeding the WHO recommendation is 0.67 with a 95% CI of 0.48–0.59, which is internally inconsistent and likely a typographical error.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1093/eurjpc/zwad060

Cites

43 of 43 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 58 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    Sleep duration was associated with all-cause mortality in a U-shaped pattern in non-linear analyses (P nonlinearity <0.001).

    “Sleep duration was associated with all-cause and CVD mortality in U-and L-shaped patterns, respectively, in the non-linear analyses (both P nonlinearity <0.001) (Figure 1A and B).”
    Quote in the paperSubstantial claim
  • Findingown data

    The combinations of a low volume of PA with short sleep duration (HR, 2.51; 95% CI, 2.07-3.05) and long sleep duration (HR, 2.06; 95% CI, 1.80-2.36) were associated with the highest risk of all-cause mortality.

    “The combinations of a low volume of PA with short (HR, 2.51; 95% CI, 2.07-3.05)and long sleep duration (HR, 2.06; 95% CI, 1.80-2.36)were associated with the highest risk of all-cause mortality”
    Quote in the paperSubstantial claim
  • Findingown data

    A higher volume of PA or recommended MVPA attenuated the detrimental effects of short or long sleep duration on CVD mortality risk.

    “A higher volume of PA or recommended MVPA attenuated the detrimental effects of short or long sleep duration on all-cause and CVD mortality risks.”
    Quote in the paperSubstantial claim
  • Findingown data

    Engagement of MVPA above the recommended target (150 min/week), compared with below the target, showed a trend of completely reducing the excess risks of all-cause, CVD, and cancer mortality associated with short and long sleep duration.

    “Engagement of MVPA above the recommended target (150 min/ week), compared with below the target, showed a trend of completely reducing the excess risks of all-cause, CVD, and cancer mortality associated with short and long sleep duration.”
    Quote in the paperSubstantial claim
  • Findingown data

    Compared with normal sleep duration, short sleep duration increased the risk of all-cause mortality (HR, 1.34; 95% CI, 1.18-1.51) in additional adjusted multivariate Cox models.

    “As a categorized variable, compared with normal sleep duration, only short sleep duration dra- matically increased the risk of all-cause [hazard ratio (HR), 1.34; 95% CI, 1.18-1.51]and CVD (HR, 1.56; 95% CI, 1.29-1.89)mortality in the additional adjusted multivariate Cox models (see Supplementary material online, Model S2, Supplementary material online, eTable S6).”
    Quote in the paperSubstantial claim
  • May combine two claims. 14
  • Classified as probably not a substantial claim. 37
  • May combine two claims.

    Findingown data

    The spline analyses suggested that the maximal risk reduction was observed at about 25 mg for the total volume of PA and 150 min per week for MVPA, nearly meeting the lower threshold of the WHO recommendation for PA.

    “The spline analyses suggested that the maximal risk reduction was observed at about 25 mg for the total volume of PA and 150 min per week for MVPA, nearly meeting the lower threshold of the WHO recommendation for PA.21”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [21] Bull, 2020, World health organization 2020 guidelines on physical activity and sedentary behaviour, Br J Sports Med source

      Not checked in the free run.

  • May combine two claims.

    Findingown data

    Physical activity and sleep duration had additive and multiplicative interactions on mortality risk (P interaction <0.05).

    “PA and sleep duration had additive and multiplicative interactions on mortality risk (P interaction <0.05).”
    • Also stated in: § Joint associations of accelerometer-measured physical activity and sleep duration with mortality · plain
      “we found significant additive and/or multiplicative interactions of short sleep duration, the total volume of PA, and MVPA with all mortality outcomes (see Supplementary material online, eTables S8 and S9).”
    • Also stated in: § Discussion · plain
      “The most striking finding was that objectively measured PA and sleep duration had significantly additive and interactive effects on mortality risks.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Physical activity (total volume and MVPA) and sleep duration were independently associated with mortality in a curvilinear dose-response manner.

    “The associations of PA and sleep duration with mortality risk were all in a curvilinear dose-response pattern (P nonlinearity <0.001).”
    • Also stated in: § Independent associations of accelerometer-measured physical activity and sleep duration with mortality · plain
      “Non-linear dose-response patterns were observed in the associations of a higher amount of total PA or MVPA with a reduced risk of all-cause, CVD, and cancer mortality (all P overall <0.001; all P nonlinearity <0.001) (Figure 1).”
    • Also stated in: § Discussion · plain
      “First, accelerometer-measured PA (total volume of PA and time spent in MVPA) and sleep duration were independently associated with mortality in a curvilinear dose-response manner.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingcitation

    We analysed the association of sedentary behaviour with physical activity by defining sedentary as any epoch with a mean acceleration <30 mg outside the SPT window according to similar studies.

    “We analysed the association of sedentary behaviour with PA by defining sedentary as any epoch with a mean acceleration <30 mg outside the SPT window according to similar studies, 41 and did find a significant correlation between them (Spearman's correlation: ρtotal volume of PA = -0.706,ρMVPA = -0.357).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [41] Kandola, 2021, Impact of replacing sedentary behaviour with other movement behaviours on depression and anxiety symptoms: a prospective cohort study in the UK Biobank, BMC Med source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    Our study replicated previous observations in a much larger sample using accelerometer-measured data, which can substantially offset the pitfalls of self-reported data and provide more reliable estimates of prospective associations of sleep and PA with mortality.

    “Our study replicated the previous observations in a much larger sample using .accelerometer-measured data, which can substantially offset the pitfalls of self-reported data and provide more reliable estimates of prospective associations of sleep and PA with mortality.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S1 (asserted). May combine two claims.

    Premisecitation

    A higher level of physical activity modifies mortality risks associated with only short sleep duration, only long sleep duration, or both.

    “a higher level of PA was reported to modify mortality risks associated with either only short sleep duration, 8 only long sleep duration, 7 or both.10”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [8] Wennman, 2017, Leisure time physical activity and sleep predict mortality in men irrespective of background in competitive sports, Prog Prev Med source

      Not checked in the free run.

    • cites [7] Bellavia, 2014, Sleep duration and survival percentiles across categories of physical activity, Am J Epidemiol source

      Not checked in the free run.

    • cites [10] Duncan, 2023, Associations between aerobic and muscle-strengthening physical activity, sleep duration, and risk of all-cause mortality: a prospective cohort study of 282,473 U. S. Adults, J Sport Health Sci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Physical activity exerts short-term effects on sleep duration.

    “PA is also suggested to exert short-term effects on sleep duration.6”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [6] Wendt, 2022, Short-term effect of physical activity on sleep health: a population-based study using accelerometry, J Sport Health Sci source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisecitation

    Short or long sleep duration significantly increases mortality risk in a U- or J-shaped pattern.

    “mounting evidence has suggested that short or long sleep duration significantly increases mortality risk in a U-or J-shaped pattern.3,4”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [3] Liu, 2017, Sleep duration and risk of all-cause mortality: a flexible, non-linear, meta-regression of 40 prospective cohort studies, Sleep Med Rev source

      Not checked in the free run.

    • cites [4] Svensson, 2021, Association of sleep duration with all- and major-cause mortality among adults in Japan, China, Singapore, and Korea, JAMA Netw Open source

      Not checked in the free run.

  • May combine two claims.

    Interpretationown data

    Our study using accelerometry offered robust evidence supporting the large body of research relying on self-reported data, showing independent associations of PA and sleep duration with mortality.

    “Our study using accelerometry offered robust evidence supporting the large body of research relying on self-reported data, showing independent associations of PA and sleep duration with mortality.3,4”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [3] Liu, 2017, Sleep duration and risk of all-cause mortality: a flexible, non-linear, meta-regression of 40 prospective cohort studies, Sleep Med Rev source

      Not checked in the free run.

    • cites [4] Svensson, 2021, Association of sleep duration with all- and major-cause mortality among adults in Japan, China, Singapore, and Korea, JAMA Netw Open source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Physical activity is a beneficial factor that can reduce up to 70% risk for premature mortality.

    “PA is well recognized as a beneficial factor that can reduce up to 70% risk for premature mortality.2”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [2] Ekelund, 2019, Dose-response associations between accelerometry measured physical activity and sedentary time and all cause mortality: systematic review and harmonised meta-analysis, BMJ source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisecitation

    Several studies exploring the additive effects of sleep duration and physical activity on mortality risk have reproduced some conflicting findings.

    “To date, several studies have attempted to explore the additive effects of sleep duration and PA on mortality risk, reproducing some conflicting findings.7,8,25”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [7] Bellavia, 2014, Sleep duration and survival percentiles across categories of physical activity, Am J Epidemiol source

      Not checked in the free run.

    • cites [8] Wennman, 2017, Leisure time physical activity and sleep predict mortality in men irrespective of background in competitive sports, Prog Prev Med source

      Not checked in the free run.

    • cites [25] Chen, 2022, Can physical activity eliminate the mortality risk associated with poor sleep? A 15-year follow-up of 341,248 MJ cohort participants, J Sport Health Sci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    Missing data of covariates (missing rate <5%) were imputed with multiple imputations by chained equations to minimize potential inferential bias.

    “Missing data of covariates (missing rate <5%, Supplementary material online, eTable S3) were inputted with multiple imputations by chained equations to minimize the potential inferential.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    Maintaining normal sleep duration is important but not sufficient.

    “Maintaining normal sleep duration is important but not sufficient; long-term engagement in PA meeting recommendations combined with healthy sleep may yield greater benefits in maintaining longevity.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Suggested causal links to adverse health outcomes for short sleep duration include insulin resistance.

    “As for short sleep duration, the suggested causal links to adverse health outcomes included a series of pathologies including, hyperactivation of the sympathetic nervous system, 26 insulin resistance, 27 endothelial dysfunctions, 28 and inflammation.29”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [27] Dorenbos, 2015, Sleep efficiency as a determinant of insulin sensitivity in overweight and obese adolescents, Diabetes Obes Metab source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Several studies have attempted to explore the additive effects of sleep duration and physical activity on mortality risk.

    “To date, several studies have attempted to explore the additive effects of sleep duration and PA on mortality risk, reproducing some conflicting findings.7,8,25”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [7] Bellavia, 2014, Sleep duration and survival percentiles across categories of physical activity, Am J Epidemiol source

      Not checked in the free run.

    • cites [8] Wennman, 2017, Leisure time physical activity and sleep predict mortality in men irrespective of background in competitive sports, Prog Prev Med source

      Not checked in the free run.

    • cites [25] Chen, 2022, Can physical activity eliminate the mortality risk associated with poor sleep? A 15-year follow-up of 341,248 MJ cohort participants, J Sport Health Sci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    An earlier Swedish cohort with a 15-year follow-up demonstrated that the detrimental effects on survival associated with long sleep duration, but not short sleep duration, were most evident among individuals with low levels of physical activity.

    “An earlier Swedish cohort with a 15-year follow-up demonstrated that the detrimental effects on survival associated with long sleep duration, but not short sleep duration, were most evident among individuals with low levels of PA. 7”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] Bellavia, 2014, Sleep duration and survival percentiles across categories of physical activity, Am J Epidemiol source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    The present study had a large sample size.

    “The present study had some strengths, including a large sample size and the adoption of accelerometer.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Exercise training effectively alleviates endothelial dysfunction triggered by sleep loss, possibly through inflammation pathways.

    “Exercise training effectively alleviates endothelial Figure 3 Continued dysfunction triggered by sleep loss, possibly through inflammation pathways.34”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [34] Sauvet, 2017, Protective effects of exercise training on endothelial dysfunction induced by total sleep deprivation in healthy subjects, Int J Cardiol source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Suggested causal links to adverse health outcomes for short sleep duration include hyperactivation of the sympathetic nervous system.

    “As for short sleep duration, the suggested causal links to adverse health outcomes included a series of pathologies including, hyperactivation of the sympathetic nervous system, 26 insulin resistance, 27 endothelial dysfunctions, 28 and inflammation.29”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [26] Zhang, 2011, Relationship of sleep quantity and quality with 24-hour urinary catecholamines and salivary awakening cortisol in healthy middle-aged adults, Sleep source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Interpretationown data

    Our findings support the need to encourage the maintenance of guideline-recommended physical activity levels to improve longevity, especially among individuals with extremely short or long sleep duration.

    “Our findings support the need to encourage the maintenance of guideline-recommended PA levels to improve longevity, especially among individuals with extremely short or long sleep duration.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Another study in a Taiwan Chinese population-based cohort showed that short and long sleep duration was no longer associated with the risk of all-cause and cardiovascular disease mortality when achieving a physical activity level of 15 metabolic equivalent of task-hours per week or above.

    “Another study in a Taiwan Chinese population-based cohort showed that short and long sleep duration was no longer associated with the risk of all-cause and CVD mortality when achieving a PA level of 15 metabolic equivalent of task (MET)-h/week or above.9,25”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [9] Huang, 2022, Sleep and physical activity in relation to all-cause, cardiovascular disease and cancer mortality risk, Br J Sports Med source

      Not checked in the free run.

    • cites [25] Chen, 2022, Can physical activity eliminate the mortality risk associated with poor sleep? A 15-year follow-up of 341,248 MJ cohort participants, J Sport Health Sci source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Interpretationreasoning

    Our findings highlight that promotions targeting both physical activity and sleep duration may be more effective in preventing or delaying premature death among the middle-aged population than solely targeting either behaviour.

    “Our findings highlight that the promotions targeting both PA and sleep duration may be more effective in preventing or delaying premature death among the middle-aged population than solely targeting either behaviour.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

    Interpretationnone given

    The inconsistent observations concerning short or long sleep duration possibly arise from heterogeneities of study populations or daily light exposure associated with the geographical location.

    “The inconsistent observations concerning short or long sleep duration possibly arise from heterogeneities of study populations or daily light exposure associated with the geographical location, insufficient statistical power due to smaller sample size, or measurement bias.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Suggested causal links to adverse health outcomes for short sleep duration include endothelial dysfunctions.

    “As for short sleep duration, the suggested causal links to adverse health outcomes included a series of pathologies including, hyperactivation of the sympathetic nervous system, 26 insulin resistance, 27 endothelial dysfunctions, 28 and inflammation.29”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [28] Holmer, 2021, Effects of sleep deprivation on endothelial function in adult humans: a systematic review, Geroscience source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Sleep deprivation significantly promotes excess energy intake and visceral obesity.

    “Sleep deprivation significantly promotes excess energy intake and visceral obesity.30”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [30] Covassin, 2022, Effects of experimental sleep restriction on energy intake, energy expenditure, and visceral obesity, J Am Coll Cardiol source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Study design and conductnone given

    Our study tested the research question in a larger population with more reliable measures of sleep duration and physical activity using an accelerometer.

    “Our study testified the research question in a larger population with more reliable measures of sleep duration and PA using an accelerometer.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S1 (asserted).

    Premisecitation

    Sufficient physical activity attenuates the mortality risk related to unhealthy sleep.

    “these studies have implied that sufficient PA attenuates the mortality risk related to unhealthy sleep.”
    Quote in the paperNot a substantial claim0 of 4 sources checked
    • cites [7] Bellavia, 2014, Sleep duration and survival percentiles across categories of physical activity, Am J Epidemiol source

      Not checked in the free run.

    • cites [8] Wennman, 2017, Leisure time physical activity and sleep predict mortality in men irrespective of background in competitive sports, Prog Prev Med source

      Not checked in the free run.

    • cites [9] Huang, 2022, Sleep and physical activity in relation to all-cause, cardiovascular disease and cancer mortality risk, Br J Sports Med source

      Not checked in the free run.

    • cites [10] Duncan, 2023, Associations between aerobic and muscle-strengthening physical activity, sleep duration, and risk of all-cause mortality: a prospective cohort study of 282,473 U. S. Adults, J Sport Health Sci source

      Not checked in the free run.

  • May combine two claims.

    Study design and conductnone given

    The definition of unusual sleep duration was not adjusted according to age, which may introduce a misclassification bias.

    “Second, the definition of unusual sleep duration was not adjusted according to age, which may introduce a misclassification bias.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    Our study did not account for prospective changes in sleep duration and physical activity.

    “First, our study did not account for prospective changes in sleep duration and PA.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationnone given

    The inconsistent observations concerning short or long sleep duration possibly arise from insufficient statistical power due to smaller sample size.

    “The inconsistent observations concerning short or long sleep duration possibly arise from heterogeneities of study populations or daily light exposure associated with the geographical location, insufficient statistical power due to smaller sample size, or measurement bias.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductnone given

    The present study adopted an accelerometer.

    “The present study had some strengths, including a large sample size and the adoption of accelerometer.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Interpretationreasoning

    The multiple health benefits of physical activity may potentially serve as a mechanism for attenuation or elimination of the detrimental association of short sleep duration with mortality.

    “The multiple health benefits of PA may potentially serve as a mechanism for attenuation of PA or elimination of the detrimental association of short sleep duration with mortality.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Since physical activity and sleep are time-dependent behaviours, sleeping for extremely long durations might compromise the time available for physical activity.

    “Since PA and sleep are timedependent behaviours, sleeping for extremely long durations might compromise the time available for PA.36”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [36] Cassidy, 2016, Cross-sectional study of diet, physical activity, television viewing and sleep duration in 233,110 adults from the UK Biobank; the behavioural phenotype of cardiovascular disease and type 2 diabetes, BMJ Open source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductcitation

    The distributions of normal, short, and long sleep duration in this study were similar to that in other middle-aged and older populations.

    “However, the distributions of normal, short, and long sleep duration in this study were similar to that in other middle-aged and older populations.39”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [39] Abdalla, 2020, Objective short sleep duration and 24-hour blood pressure, Int J Cardiol Hypertens source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationown data

    If sleep restriction or excessive time spent in bed is inevitably avoided, engaging a sufficient amount of physical activity would be considered as a practical and feasible strategy to partly compensate for the harmful effects resulting from unhealthy sleep.

    “Notably, if sleep restriction or excessive time spent in bed is inevitably avoided, engaging a sufficient amount of PA would be considered as a practical and feasible strategy to partly compensate for the harmful effects resulting from unhealthy sleep.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Suggested causal links to adverse health outcomes for short sleep duration include inflammation.

    “As for short sleep duration, the suggested causal links to adverse health outcomes included a series of pathologies including, hyperactivation of the sympathetic nervous system, 26 insulin resistance, 27 endothelial dysfunctions, 28 and inflammation.29”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [29] Irwin, 2016, Sleep disturbance, sleep duration, and inflammation: a systematic review and meta-analysis of cohort studies and experimental sleep deprivation, Biol Psychiatry source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Study design and conductcitation

    The total volume of physical activity was measured as the weekly average vector magnitude in milligravity units, a well-validated surrogate for global physical activity.

    “The total volume of PA was measured as the weekly average vector magnitude in milligravity (mg) units (field ID 90012), which is a wellvalidated surrogate for global PA.17,18”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [17] White, 2016, Estimation of physical activity energy expenditure during free-living from wrist accelerometry in UK adults, PLoS One source

      Not checked in the free run.

    • cites [18] White, 2019, Estimating energy expenditure from wrist and thigh accelerometry in free-living adults: a doubly labelled water study, Int J Obes (Lond) source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationnone given

    The inconsistent observations concerning short or long sleep duration possibly arise from measurement bias.

    “The inconsistent observations concerning short or long sleep duration possibly arise from heterogeneities of study populations or daily light exposure associated with the geographical location, insufficient statistical power due to smaller sample size, or measurement bias.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductreasoning

    P values and 95% confidence intervals were adjusted using a false discovery rate method in the main analyses to address multiple testing issues.

    “The P values and 95% confidence intervals (CIs) were further adjusted using a false discovery rate (FDR) method in the main analyses to address the multiple testing issues.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Study design and conductnone given

    The sample from the UK Biobank is not representative of the population of the UK, which may limit the generalization of the current findings.

    “Last, the sample from the UK Biobank is not representative of the population of the UK, which may limit the generalization of the current findings.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductreasoning

    Sedentary behaviour is not included in the current analyses due to its possible association with physical activity and sleep, which would violate the premise of Cox proportional hazards regression models.

    “Fifth, sedentary behaviour is not included in the current analyses due to its possible association with PA and sleep, which would violate the premise of Cox proportional hazards regression models.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Study design and conductcitation

    These parameters are not investigated in the current study because accelerometer is limited in measuring parameters other than sleep/wake states.

    “These parameters are not investigated in the current study because accelerometer is limited in measuring parameters other than sleep/wake states.42”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [42] Depner, 2020, Wearable technologies for developing sleep and circadian biomarkers: a summary of workshop discussions, Sleep source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductreasoning

    We excluded participants with baseline cardiovascular disease and cancer in the sensitivity analyses.

    “Therefore, we further adjusted for prevalent illness at baseline, removed deaths in the first two years of followup, and excluded participants with baseline CVD and cancer in the sensitivity analyses.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    These covariates have been proven to be stable over time, indicating that such a time lag is not likely to affect the reliability of the current findings.

    “However, these covariates have been proven to be stable over time, 40 indicating that such a time lag is not likely to affect the reliability of the current findings.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [40] Strain, 2020, Wearable-device-measured physical activity and future health risk, Nat Med source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Besides sleep duration, various sleep patterns and sleep behavioural issues have been found to be associated with excessive mortality risks.

    “Sixth, besides sleep duration, various sleep patterns and sleep behavioural issues have been found to be associated with excessive mortality risks.9,25”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [9] Huang, 2022, Sleep and physical activity in relation to all-cause, cardiovascular disease and cancer mortality risk, Br J Sports Med source

      Not checked in the free run.

    • cites [25] Chen, 2022, Can physical activity eliminate the mortality risk associated with poor sleep? A 15-year follow-up of 341,248 MJ cohort participants, J Sport Health Sci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductreasoning

    We removed deaths in the first two years of follow-up in the sensitivity analyses.

    “Therefore, we further adjusted for prevalent illness at baseline, removed deaths in the first two years of followup, and excluded participants with baseline CVD and cancer in the sensitivity analyses.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductreasoning

    We further adjusted for prevalent illness at baseline in the sensitivity analyses.

    “Therefore, we further adjusted for prevalent illness at baseline, removed deaths in the first two years of followup, and excluded participants with baseline CVD and cancer in the sensitivity analyses.”
    Quote in the paperNot a substantial claim
47 of 47
  • The paper relies on this without support.

    No prior study has examined the joint effects of physical activity and sleep duration on mortality risk using accelerometry.

    “To the best of our knowledge, no study till date has examined the joint effects of PA and sleep duration on mortality risk using accelerometry.”
  • The paper relies on this without support.

    Accelerometer measurements provide reliable and objective estimates of physical activity and sleep duration across consecutive days.

    “In contrast to subjective measures, the accelerometer provides reliable and objective estimates of PA and sleep duration across consecutive days.”
  • The paper relies on this without support.

    A 7-day accelerometer recording adequately represents habitual physical activity and sleep duration for estimating long-term mortality risk.

    “A 7-day accelerometer recording was performed on 92 221 participants (age 62.4 ± 7.8 years; 56.4% women) from the UK Biobank between February 2013 and December 2015.”
3 of 3

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?

  • Undertaking accelerometer-measured light-intensity physical activity at intensity levels lower than 3.0 metabolic equivalents could be an easier choice than moderate-to-vigorous intensity physical activity for enhancing health.

    “Instead, undertaking accelerometer-measured light-intensity PA (LPA) at intensity levels lower than 3.0 metabolite equivalents (METs) could be an easier choice than MVPA for enhancing health.10, 11, 12”

    From Accelerometer-measured physical activity, sedentary behavior, and incidence of macrovascular and microvascular events in individuals with type 2 diabetes mellitus and prediabetes (2025) · cites this paper as [11]

    The Discussion (page not available in our copy) says that a higher volume of accelerometer-measured physical activity at any intensity could diminish mortality risks associated with short or long sleep. That includes light activity in principle, but the paper does not identify activity below 3.0 METs as an easier choice than MVPA or assess that comparison. (LLM, conf=0.78)

    Experimental — accuracy not yet measured

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.

  • All-cause mortality hazard ratio falls outside its confidence interval

    Major

    The reported hazard ratio of 0.67 is greater than the upper bound of its reported 95% confidence interval, 0.59. At least one of these conclusion-bearing values is wrong.

  • Short sleepers are described as having more prevalent cancer

    Minor

    Relative to normal sleepers, short sleepers had a lower, not higher, proportion with a cancer history: 12.1% versus 14.2%.

  • Total PA volume is defined using incompatible measures

    Minor

    The methods first define total PA volume as average acceleration measured in mg, then say it is formed by summing minutes of moderate and vigorous activity while retaining mg cutoffs. Those procedures do not produce the same measure.

  • Long sleepers are described as more likely to be obese

    Minor

    The comparison is with normal sleepers, but Table 1 reports obesity in 17.8% of long sleepers versus 19.1% of normal sleepers.

  • Proportion not meeting MVPA recommendations is reversed

    Minor

    The text says 39.1% did not meet the target, but Table 1 assigns 39.1% to the recommended group and 60.9% to the not-recommended group.

  • Spline caption specifies five knots but lists four

    Minor

    The Figure 1 caption says five knots were used but identifies only four percentile locations. The Figure 2 caption repeats the same description.

6 of 6

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liang, Y. Y., Feng, H., Chen, Y., Jin, X., Xue, H., Zhou, M., Ma, H., Ai, S., Wing, Y.-K., Geng, Q., & Zhang, J.
Affiliations
  • Guangdong Academy of Medical Sciences (CN)
  • Guangzhou Medical University (CN)
  • Chinese University of Hong Kong (HK)
  • Jinan University (CN)
Corresponding author
  • Geng, Qingshan
  • Zhang, Jihui
Venue
European Journal of Preventive Cardiology
Published
2023-03-29
Volume
30
Issue
9
Pages
832-843
ISSN
  • 2047-4873 (ISSN-L)
  • 2047-4881
OpenAlex
W4361269354
Cited by
102
References
43
Citations by year
2026: 18 · 2025: 40 · 2024: 37 · 2023: 7
FWCI
18.02
Type
journal article
Language
en
Open access
Locations
  • European Journal of Preventive Cardiology (publishedVersion, other-oa)
  • PubMed (publishedVersion)
Funders
  • National Key (2021YFC2501500)
  • National Natural Science Foundation (82101558, DFJH201811)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
physical activity, sleep duration, all-cause mortality, cardiovascular mortality, cancer mortality, moderate-to-vigorous physical activity, short sleep duration, long sleep, dose-response relationship, interaction effects, UK Biobank
MeSH terms
Sleep Duration, Adult, Aged, Cardiovascular Diseases, Cause of Death, Female, Humans, Male, Middle Aged, Cohort Studies, Exercise, Accelerometry

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 2026-10-09.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-09.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

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