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Related Experiment Video

Updated: Nov 24, 2025

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
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Power Versus Sarcopenia: Associations with Functionality and Physical Performance Measures.

G Bahat1, C Kilic, S Eris

  • 1Gulistan Bahat, Istanbul University, Istanbul Medical School, Department of Internal Medicine, Capa, 34390, Istanbul, Turkey, Telephone: + 90 212 414 20 00-33204, Fax: + 90 212 532 42 08,

The Journal of Nutrition, Health & Aging
|December 28, 2020
PubMed
Summary
This summary is machine-generated.

Low muscle power, assessed using a practical sit-to-stand test, is strongly linked to functional decline in older adults. This measure shows greater association with disability than sarcopenia, highlighting its clinical importance.

Keywords:
EWGSOP2Powerchair-sit-to-stand testfunctionalityphysical performancesarcopenia

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Area of Science:

  • Gerontology
  • Muscle Physiology
  • Biomedical Engineering

Background:

  • Sarcopenia assessment is widely studied, but low muscle power evaluation remains underexplored.
  • Assessing muscle power is challenging in clinical practice.
  • This study compares low muscle power and sarcopenia associations with functional and performance measures.

Purpose of the Study:

  • To compare the associations of low muscle power and sarcopenia with functional and performance measures in older adults.
  • To evaluate the utility of a practical muscle power assessment.

Main Methods:

  • Retrospective and cross-sectional study of community-dwelling older adults.
  • Muscle power assessed via a 5-repetition sit-to-stand power test, adjusted for body weight.
  • Sarcopenia defined using EWGSOP2 criteria; functional measures included ADL, IADL, TUG, and UGS.

Main Results:

  • Low muscle power was significantly associated with impaired ADL (OR=2.4) and IADL (OR=2.4), and impaired usual gait speed (UGS) (OR=6.6).
  • Probable sarcopenia was associated with impaired IADL (OR=3.6) and UGS (OR=2.4), but confirmed sarcopenia was not significantly related to these measures.
  • Low muscle power demonstrated stronger associations with functional and performance deficits than sarcopenia.

Conclusions:

  • A practical muscle power test (5-repetition sit-to-stand) is a convenient and valuable measure for assessing functional status in older adults.
  • Low muscle power is a more sensitive indicator of functional impairment than sarcopenia.
  • Further longitudinal research is warranted to confirm predictive value for future functional decline.