Document Detail


One-repetition maximum strength test represents a valid means to assess leg strength in vivo in humans.
MedLine Citation:
PMID:  19031334     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Skeletal muscle strength is often determined to evaluate the adaptive response to an exercise intervention programme. Although dynamometry is considered the "gold standard" for the assessment of muscle strength in vivo, one-repetition maximum (1-RM) testing performed on training-specific equipment is more commonly applied. We assessed the validity of specific knee extension 1-RM testing by comparison with dynamometry in a heterogeneous population (n=55). All participants performed 1-RM tests on regular leg extension and leg press machines. Additionally, isometric (at seven different knee angles) and isokinetic (at four different velocities) knee extension peak torques were determined. Pearson's r was calculated for the relationship between 1-RM data and peak torques for the entire population and for subgroups defined by age and gender. One-repetition maximum strength correlated strongly with the dynamometer results. One-repetition maximum leg extension correlated more strongly with peak torques than did 1-RM leg press (0.78<or=r<or=0.88 vs. 0.72<or=r<or=0.77; P<0.001). Similar correlations were observed in all subgroups. We conclude that 1-RM testing represents a valid means to assess leg muscle strength in vivo in young and elderly men and women. Considering the importance of training specificity in strength assessment, we argue that 1-RM testing can be applied to assess changes in leg muscle strength following an exercise intervention.
Authors:
Lex B Verdijk; Luc van Loon; Kenneth Meijer; Hans H C M Savelberg
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Publication Detail:
Type:  Journal Article; Validation Studies    
Journal Detail:
Title:  Journal of sports sciences     Volume:  27     ISSN:  0264-0414     ISO Abbreviation:  J Sports Sci     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2008-12-26     Completed Date:  2009-03-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405364     Medline TA:  J Sports Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  59-68     Citation Subset:  IM    
Affiliation:
Department of Human Movement Sciences, Maastricht University, Maastricht, Netherlands. lex.verdijk@bw.unimaas.nl
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Body Size
Female
Humans
Isometric Contraction
Leg / physiology*
Male
Middle Aged
Muscle Strength*
Muscle Strength Dynamometer
Muscle, Skeletal / physiology*
Reproducibility of Results
Torque
Weight Lifting / physiology

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


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