Association Of Muscle Power With Functional Status In Community-Dwelling Elderly Women

By Ty Sevin, Sep 01, 2021

< Back to Benefits of Strength Training on Strength and Power Gains in Older Adults

Foldvari M, Clark M, Laviolette LC, Bernstein MA, Kaliton D, Castaneda C, Pu CT, Hausdorff JM, Fielding RA, Singh MA. Nutrition, Exercise Physiology, and Sarcopenia Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts 02111, USA. mfoldvari@hnrc.tufts.edu 

Objectives

This study used baseline data collected as part of a 1-year randomized controlled trial of combined strength, power, and endurance training with 80 elderly woman (74.8 + 5 yr) to test the hypothesis that peak muscle power is closely associated with self-reported functional status. The subjects functional status was assessed by self-report using the NHANES I questionnaire. Additional variables of strength, muscle power, muscle endurance, Vo2 Peak, depression and cognitive status were measured using 1RM, maximum number of repetition, treadmill test, Geriatric Depression Scale and the Mini-Mental State Exam respectively.

Results

Analyzing each variable individually, functional status at baseline was related to physiologic capacity, habitual physical activity level, neuropsychological status, and medical diagnosis. Leg power had the strongest correlation to self-reported functional status than any of the physiological factors tested. Additionally leg press power and habitual physical activity level were the only two factors that contributed independently to functional status, accounting for 40% for the variance in functional status.

Summary

A significant amount of research has been done on the effects of increased strength on functional status of older adults. However, this study highlights the importance of power to the functional status of community dwelling elderly women. Leg power was the strongest predictor of self-reported functional status in elderly women. Habitual physical activity also significantly impacted functional status.

Keiser Equipment Used

Chest Press, Upper Back, Leg Press and Hip Abductor

Published in the Journal of Gerontology, A Biol Sci Med Sci 2000 Apr;55(4):M192-9

Link to Original Research

About the author

Ty Sevin

Director of Human Performance, Education and Research

Articles by Ty Sevin >

With over 25 years of coaching experience at both the collegiate and Olympic levels, Ty Sevin is one of the most influential track and field coaches in the country. Ty has worked for the United States Olympic Committee, serving as the Director of the Track and Field Residency Program at the USOC Olympic Training Center in Chula Vista, CA. He has also served as an assistant coach for Team USA on three separate occasions, for both the men’s and women’s teams. Ty himself was a four-time U.S. Olympics Trials qualifier in javelin. Ty most recently spent four years as the Associate Head Coach at the University of Texas at Austin for both the men’s and women’s track and field teams. Prior to that, he led the men’s and women’s track and cross-country teams at the University of New Orleans and McNeese State.

Currently, Ty applies his vast industry experience to the role of Director of Human Performance, Research and Education for Keiser Corporation, where he consults with college and professional sports teams regarding the utilization of Keiser strength equipment. He is also responsible for creating educational curriculum relating to human performance and overseeing Keiser research projects