Philip A. Ades, MD; Douglas L. Ballor, PhD; Taka Ashikaga, PhD; Jody L. Utton, BS; K. Sreekumaran Nair, MD, PhD
To determine the effect of a resistance-training program on walking endurance in a healthy, community-dwelling elderly population.
12-week randomized, controlled trial comparing a resistance-training group with a nonexercising control group.
Hospital-affiliated outpatient exercise facility.
24 healthy men and women who were 65 years of age or older (mean age ±SD, 70.4 ± 4 years; range, 65 to 79 years).
The primary outcome variable was exhaustive submaximal walking time measured at an intensity of 80% of baseline peak aerobic capacity.
Participants in the resistance-training program increased submaximal walking endurance by 9 minutes (from 25 ± 4 minutes to 34 ± 9 minutes; P = 0.001), a 38% increase, whereas no change was seen in controls (20 ± 5 minutes to 19 ± 10 minutes; P > 0.2; P = 0.005 between groups). The relation between change in leg strength and change in walking endurance was significant (r = 0.48; P = 0.02). Neither group showed a change in peak aerobic capacity or in whole-body composition, although fat-free mass of the leg increased in the exercise group.
Resistance training for 3 months improves both leg strength and walking endurance in healthy, community-dwelling elderly persons. This finding is relevant to older persons at risk for disability, because walking endurance and leg strength are important components of physical functioning.
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Ades PA, Ballor DL, Ashikaga T, Utton JL, Nair KS. Weight Training Improves Walking Endurance in Healthy Elderly Persons. Ann Intern Med. 1996;124:568-572. doi: 10.7326/0003-4819-124-6-199603150-00005
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Published: Ann Intern Med. 1996;124(6):568-572.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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