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Clinical Trial
. 2000 Feb;32(2):271-7.
doi: 10.1097/00005768-200002000-00004.

A Randomized Trial of Preexercise Stretching for Prevention of Lower-Limb Injury

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Clinical Trial

A Randomized Trial of Preexercise Stretching for Prevention of Lower-Limb Injury

R P Pope et al. Med Sci Sports Exerc. .

Abstract

Purpose: This study investigated the effect of muscle stretching during warm-up on the risk of exercise-related injury.

Methods: 1538 male army recruits were randomly allocated to stretch or control groups. During the ensuing 12 wk of training, both groups performed active warm-up exercises before physical training sessions. In addition, the stretch group performed one 20-s static stretch under supervision for each of six major leg muscle groups during every warm-up. The control group did not stretch.

Results: 333 lower-limb injuries were recorded during the training period, including 214 soft-tissue injuries. There were 158 injuries in the stretch group and 175 in the control group. There was no significant effect of preexercise stretching on all-injuries risk (hazard ratio [HR] = 0.95, 95% CI 0.77-1.18), soft-tissue injury risk (HR = 0.83, 95% CI 0.63-1.09), or bone injury risk (HR = 1.22, 95% CI 0.86-1.76). Fitness (20-m progressive shuttle run test score), age, and enlistment date all significantly predicted injury risk (P < 0.01 for each), but height, weight, and body mass index did not.

Conclusion: A typical muscle stretching protocol performed during preexercise warm-ups does not produce clinically meaningful reductions in risk of exercise-related injury in army recruits. Fitness may be an important, modifiable risk factor.

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