Journal
AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION
Volume 88, Issue 10, Pages 815-822Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/PHM.0b013e3181b72149
Keywords
Older Women; Knee Flexors; Active Stretching; Torque
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Objective: To investigate the effect of an active stretching program on the knee flexors with regards to flexibility, torque, and functional mobility of older women. The hypothesis of this study was that a program of active knee-flexor stretching increases flexibility and muscle torque and improves functional mobility. Design: Twelve active older women aged 68.3 +/- 6.2 yrs participated in this study, which lasted 12 wks. This study was divided into three phases (A(1)-B-A(2)), each lasting 4 wks. Phases A(1) and A(2) were control phases (without intervention), and phase B (stretch) consisted of seven repetitions of active knee-flexor stretching (1 min each, 30-sec rest, twice a week). Flexibility, functionality, and isokinetic torque (knee flexors and extensors) were assessed by measuring the knee-extension range of motion, the Timed Up & Go test, and by a dynamometry test at 60 degrees/sec. Results: Stretching increased the flexibility of the knee flexors (41.5%; P = 0.0001), knee-flexor torque (11.40%), and extensor torque (10.1%) (P <= 0.01) but decreased Timed Up & Go test performance (114.3%; P = 0.0001). Conclusions: The results of this study showed that an active stretching program was effective in increasing the flexibility of knee flexors, extensor and flexor torque, and functional mobility in older women.
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