Journals of Gerontology Series A: Biological Sciences and Medical Sciences, Vol 53, Issue 5 M395-M404, Copyright © 1998 by The Gerontological Society of America

JOURNAL ARTICLE

Interrelationships among disablement concepts

AM Jette, SF Assmann, D Rooks, BA Harris and S Crawford
Sargent College of Health and Rehabilitation Sciences, Boston University, USA. [email protected]

BACKGROUND: Understanding interrelationships among disablement concepts is critical to the design of future disability treatment and prevention interventions. METHODS: This study uses cross-sectional data to examine the relationships among physiologic impairments, functional limitations, and disability in a moderately disabled sample of 207 community-dwelling older adults. RESULTS: As hypothesized, the data revealed statistically significant curvilinear relationships of upper and lower extremity strength and balance with mobility in this older sample. Multivariate analyses further clarified the hypothesized causal mechanism among the disablement concepts by demonstrating that most of the association of muscle strength and balance with disability was through the intermediary role of mobility limitations. CONCLUSIONS: The findings from this study highlight the value of clinical trials that focus on prevention or treatment of mobility limitations as a means of preventing disability; our findings underscore the need for future research that examines the effects of other variables believed to influence disablement in late life.

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