Skip Navigation LinksHome > January 2014 - Volume 28 - Issue 1 > Stretching-Induced Deficit of Maximal Isometric Torque Is Re...
Journal of Strength & Conditioning Research:
doi: 10.1519/JSC.0b013e3182964220
Original Research

Stretching-Induced Deficit of Maximal Isometric Torque Is Restored Within 10 Minutes

Mizuno, Takamasa; Matsumoto, Minoru; Umemura, Yoshihisa

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Abstract: Mizuno, T, Matsumoto, M, and Umemura, Y. Stretching-induced deficit of maximal isometric torque is restored within 10 minutes. J Strength Cond Res 28(1): 147–153, 2014—The purpose of this study was to clarify the time course of the stretching-induced decrease in maximal isometric plantar flexion torque. Nineteen women participated in 2 randomly ordered experimental trials: static 5-minute stretching or control with no stretching. The participants performed isometric maximal voluntary contractions (MVCs) of the right plantar flexor muscles, whereas electromyographic (EMG) amplitude (root mean square) was calculated for the medial and lateral gastrocnemius muscles. Measurements were conducted preintervention; immediately after intervention; and 5, 10, 15, and 30 minutes postintervention. The static 5-minute stretching trial consisted of dorsiflexion to the end range of motion and holding that position for 1 minute, 5 times, whereas the control trial consisted of 5 minutes of resting. As a result, the MVC torque was significantly decreased immediately after, and 5 minutes after the static 5-minute stretching intervention compared with the preintervention value (p < 0.05), and this change recovered within 10 minutes. However, the EMG amplitude did not change from preintervention to postintervention under any conditions. These results suggest that the deficits of static stretching are disabled in a short time after static stretching.

Copyright © 2014 by the National Strength & Conditioning Association.



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