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Journal of Applied Gerontology
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Exercise and Health-Related Quality of Life in Older Community-Dwelling Adults

A Meta-Analysis of Randomized Controlled Trials

George A. Kelley

West Virginia University, Morgantown

Kristi S. Kelley

West Virginia University, Morgantown

Jennifer M. Hootman

Centers for Disease Control and Prevention, Atlanta, Georgia

Dina L. Jones

West Virginia University, Morgantown

The authors used the meta-analytic approach to examine the effects of physical activity on health-related quality of life (HRQOL) in older community-dwelling adults. A random-effects model was used for all primary analyses. Of the 257 studies screened, 11 randomized controlled trials representing 13 groups and 617 men and women (324 physical activity, 293 control), all older than 50, were included. Overall, a significant (small to moderate) standardized effect size improvement was found for physical function as a result of physical activity (Hedges's g = 0.41, 95% confidence interval [CI] = 0.19, 0.64, p < .001). This was equivalent to a common language effect size of 62% and an odds ratio of 2.14 (95% CI = 1.42, 3.24). No significant differences were found for the other nine HRQOL outcomes. Although additional research is needed, results suggest that physical activity improves self-reported physical function, a component of HRQOL, in older community-dwelling adults.

Key Words: exercise • physical activity • quality-of-life • meta-analysis • gerontology

This version was published on June 1, 2009

Journal of Applied Gerontology, Vol. 28, No. 3, 369-394 (2009)
DOI: 10.1177/0733464808327456
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