Cited by 91Nutrition and Health in AgingBalance, Gait, and Falls PreventionCardiovascular and exercise physiology

The specific contributions of force and velocity to muscle power in older adults

Open access
Pojednic, Rachele M., Clark, David J., Patten, Carolynn, Reid, Kieran, Phillips, Edward M., Fielding, Roger A.·2012·Experimental Gerontology

Abstract

The purpose of this study is to examine the relative importance of the force-based and velocity-based measures of muscle performance to explain inter-individual differences in power production capability and functional task performance. Participants included seventy-nine men and women: middle-aged healthy adults (MH: 40-55years), older healthy adults (OH: 70-85years), and older adults with mobility limitations (OML: 70-85years). Muscle power at 180°/s, isometric maximal torque, and maximal contraction velocity at 40% 1RM were measured during unilateral leg extension. The Short Physical Performance Battery (SPPB) was used to differentiate between healthy and mobility limited older adults. Functional task performance was assessed using multiple chair rise and stair climb tests. Leg extensor force (torque), but not maximal contraction velocity, was significantly associated with muscle power in MH. Both torque and velocity were significantly associated with muscle power in OH. Maximal velocity, but not torque, was associated with power in OML. Maximal velocity demonstrated an association with multiple chair rise time and stair climb time in OML, but not MH or OH. It is concluded that movement velocity is an increasingly important determinant of maximal power output with advancing age. Furthermore, movement velocity is also a critical component of functional task performance with aging and may contribute to functional deficits. These findings help to explain why the rate-dependent variable power has emerged as a critical component of both assessment and rehabilitation of muscular performance and physical function in older adults.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.exger.2012.05.010

Cites

29 of 29 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Pojednic, R. M., Clark, D. J., Patten, C., Reid, K., Phillips, E. M., & Fielding, R. A.
Affiliations
  • Tufts University (US)
  • University of Florida (US)
Corresponding author
Fielding, Roger A.
Venue
Experimental Gerontology
Publisher
Elsevier BV
Published
2012-08
Volume
47
Issue
8
Pages
608-613
ISSN
0531-5565 (ISSN-L)
OpenAlex
W2065248675
Cited by
91
References
29
Citations by year
2026: 1 · 2025: 4 · 2024: 5 · 2023: 7 · 2022: 6 · 2021: 8 · 2020: 8 · 2019: 8 · 2018: 6 · 2017: 5 · 2016: 7 · 2015: 9 · 2014: 8 · 2013: 6 · 2012: 2
FWCI
5.36
Type
journal article
Language
en
Open access
Locations
  • Experimental Gerontology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5p30ag031679-15)
  • National Institute on Aging (1 P30 AG031679, AG18844, P30-AG031679, R01AG018844, P30AG028740)
  • National Heart, Lung, and Blood Institute (T32HL69772, T32HL069772)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R24HD065688)
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
muscle power, movement speed, isometric torque, aging, older adults, mobility limitations, functional task performance, leg extension, sit-to-stand, Short Physical Performance Battery, individual differences
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Female, Humans, Leg, Male, Middle Aged, Muscle Contraction, Task Performance and Analysis, Muscle, Skeletal, Torque, Mobility Limitation

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.

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.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review