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Stretching-induced deficit of maximal isometric torque is restored within 10 minutes.
MedLine Citation:
PMID:  23615480     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The purpose of this study was to clarify the time course of the stretching-induced decrease in maximal isometric plantarflexion torque. Nineteen females participated in two randomly ordered experimental trials: static 5-min stretching or control with no stretching. Participants performed isometric maximal voluntary contractions (MVCs) of the right plantarflexor muscles, while electromyographic (EMG) amplitude (root-mean-square) was calculated for the medial and lateral gastrocnemius muscles. Measurements were conducted pre-intervention, immediately after intervention, and 5, 10, 15, and 30 min post-intervention. The static 5-min stretching trial consisted of dorsiflexion to the end range of motion and holding that position for 1 min, five times, whereas the control trial consisted of 5 min of resting. As a result, MVC torque was significantly decreased immediately after, and 5 min after the static 5-min stretching intervention compared with the pre-intervention value (P < 0.05), and this change recovered within 10 min. However, EMG amplitude did not change from pre- to post-intervention under any conditions. These results suggest that the deficits of static stretching are disabled in a short time after static stretching.
Authors:
Takamasa Mizuno; Minoru Matsumoto; Yoshihisa Umemura
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-23
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Laboratory for Exercise Physiology and Biomechanics, School of Health and Sport Sciences, Chukyo University, Toyota, Japan.
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