Human Kinetics, International Journal of Sports Physiology and Performance, 1(10), p. 117-119, 2015
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Purpose:To examine the acute effect of a single static-stretching session of hamstring muscles on torque production in relation with individual flexibility.Methods:Maximal voluntary concentric torque of hamstring muscles was measured before and after a static-stretching session (6 × 30 s). Torque changes were correlated with the flexibility level determined at the onset of the experimental procedure.Results:The hamstring-stretching intervention significantly reduced maximal concentric torque in participants with low and high hamstring flexibility. Hamstring flexibility and torque decrease, determined immediately after the stretching procedure, were negatively correlated.Conclusions:Torque decrease measured after the static-stretching session is dependent on participant flexibility. Participants with low flexibility are much more likely to demonstrate large torque decreases poststretching.