{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T17:04:05Z","timestamp":1778087045784,"version":"3.51.4"},"reference-count":72,"publisher":"University of Toronto Press Inc. (UTPress)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Physiotherapy Canada"],"published-print":{"date-parts":[[2009,10]]},"abstract":"<jats:p> Purpose: To describe previously reported locomotor muscle and whole-body composition factors related to mobility in older individuals. <\/jats:p><jats:p> Methods: A narrative review of the literature, including a combination of search terms related to muscle and whole-body composition factors and to mobility in older individuals, was carried out. Statistical measures of association and risk were consolidated to summarize the common effects between studies. <\/jats:p><jats:p> Results: Fifty-three studies were reviewed. Muscle and whole-body factors accounted for a substantial amount of the variability in walking speed, with coefficients of determination ranging from 0.30 to 0.47. Muscle power consistently accounted for a greater percentage of the variance in mobility than did strength. Risks associated with high fat mass presented a minimum odds ratio (OR) of 0.70 and a maximum OR of 4.07, while the minimum and maximum ORs associated with low lean mass were 0.87 and 2.30 respectively. Whole-body and regional fat deposits accounted for significant amounts of the variance in mobility. <\/jats:p><jats:p> Conclusion: Muscle power accounts for a greater amount of the variance in the level of mobility in older individuals than does muscle strength. Whole-body fat accounts for a greater amount of the variance in level of mobility than does whole-body lean tissue. Fat stored within muscle also appears to increase the risk of a mobility limitation in older individuals. <\/jats:p>","DOI":"10.3138\/physio.61.4.197","type":"journal-article","created":{"date-parts":[[2010,1,15]],"date-time":"2010-01-15T03:43:26Z","timestamp":1263527006000},"page":"197-209","source":"Crossref","is-referenced-by-count":27,"title":["Regional Muscle and Whole-Body Composition Factors Related to Mobility in Older Individuals: A Review"],"prefix":"10.3138","volume":"61","author":[{"given":"Jason","family":"Kidde","sequence":"first","affiliation":[{"name":"Jason Kidde, MS, CSCS: Research Associate, Department of Physical Therapy, University of Utah, Salt Lake City, Utah."},{"name":"Robin Marcus, PhD, PT: Assistant Professor, Department of Physical Therapy, University of Utah, Salt Lake City, Utah."},{"name":"Lee Dibble, PhD, PT: Assistant Professor, Department of Physical Therapy, University of Utah, Salt Lake City, Utah."},{"name":"Sheldon, Smith MS, CDE: Research 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