Document Detail


Effect of acute static stretch on maximal muscle performance: a systematic review.
MedLine Citation:
PMID:  21659901     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: The benefits of preexercise muscle stretching have been recently questioned after reports of significant poststretch reductions in force and power production. However, methodological issues and equivocal findings have prevented a clear consensus being reached. As no detailed systematic review exists, the literature describing responses to acute static muscle stretch was comprehensively examined.
METHODS: MEDLINE, ScienceDirect, SPORTDiscus, and Zetoc were searched with recursive reference checking. Selection criteria included randomized or quasi-randomized controlled trials and intervention-based trials published in peer-reviewed scientific journals examining the effect of an acute static stretch intervention on maximal muscular performance.
RESULTS: Searches revealed 4559 possible articles; 106 met the inclusion criteria. Study design was often poor because 30% of studies failed to provide appropriate reliability statistics. Clear evidence exists indicating that short-duration acute static stretch (<30 s) has no detrimental effect (pooled estimate = -1.1%), with overwhelming evidence that stretch durations of 30-45 s also imparted no significant effect (pooled estimate = -1.9%). A sigmoidal dose-response effect was evident between stretch duration and both the likelihood and magnitude of significant decrements, with a significant reduction likely to occur with stretches ≥ 60 s. This strong evidence for a dose-response effect was independent of performance task, contraction mode, or muscle group. Studies have only examined changes in eccentric strength when the stretch durations were >60 s, with limited evidence for an effect on eccentric strength.
CONCLUSIONS: The detrimental effects of static stretch are mainly limited to longer durations (≥ 60 s), which may not be typically used during preexercise routines in clinical, healthy, or athletic populations. Shorter durations of stretch (<60 s) can be performed in a preexercise routine without compromising maximal muscle performance.
Authors:
Anthony D Kay; Anthony J Blazevich
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  44     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-19     Completed Date:  2012-04-25     Revised Date:  2012-10-23    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  154-64     Citation Subset:  IM; S    
Affiliation:
Sport Exercise & Life Sciences, The University of Northampton, Northampton, United Kingdom. tony.kay@northampton.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Athletic Performance / physiology
Female
Humans
Male
Muscle Strength / physiology*
Muscle Stretching Exercises / adverse effects,  methods*
Randomized Controlled Trials as Topic
Reproducibility of Results
Comments/Corrections
Comment In:
Clin J Sport Med. 2012 Sep;22(5):450-1   [PMID:  22929045 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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