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Journals of Gerontology Series A: Biological Sciences and Medical Sciences, Vol 52, Issue 3 M161-M168, Copyright © 1997 by The Gerontological Society of America
RANDOMIZED CONTROLLED TRIAL |
DS Rooks, DP Kiel, C Parsons and WC Hayes
Department of Orthopedic Surgery, Beth Israel Deaconess Medical Center, Boston, USA.
BACKGROUND: Resistance-training intervention studies have demonstrated meaningful health benefits in older adults; however, most have used exercises performed at specific intensities on expensive equipment, which limit their widespread applicability. We tested whether two self- paced, less expensive exercise protocols could be effective and safe for modifying neuromotor performance and functional capacity in community-dwelling adults 65-95 years of age. METHODS: One hundred and thirty-one subjects were randomized to a novel resistance training, walking, or control group. Subjects determined their level of resistance or walking intensity (self-paced) on a session-by-session basis. Muscle strength, balance, reaction time, stair climbing speed, and a timed pen pickup task were measured before and after the intervention period. Exercisers met three times per week for 10 months. RESULTS: Significant improvements in tandem stance and single-legged stance with eyes open times and stair climbing speed were seen in both exercise groups. In addition, resistance trainers improved their muscle strength and ability to pick up an object from the floor and reduced the number of missteps taken during tandem walking, and walkers reduced tandem walking time. Controls showed no significant improvement in any variable. CONCLUSIONS: The two self-paced exercise protocols were effective at improving neuromotor performance and functional capacity in the study sample and show promise as a safe, effective, cost- efficient, acceptable exercise model for primary and secondary prevention in the general population of community-dwelling older adults.
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