Document Detail


The effect of muscle actions on the level of connective tissue damage.
MedLine Citation:
PMID:  21988268     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The aim of this study was to compare the effect of concentric with eccentric muscle actions on the resulting level of damage to connective tissues by urinary concentration of hydroxyproline. Twenty-one male volunteers were divided into control group (CG), experimental concentric group (ECG), and experimental eccentric group (EEG). The measures of hydroxyproline were performed at three times: pretest, fourth week, and posttest. Biceps curl and chest press exercises also were performed with three sets of 10 repetitions two times per week for both experimental groups. Analysis of variance (ANOVA) showed a significant difference between pretest of the CG and pretest of the ECG (p = 0.002), and between pretest and posttest for the EEG (p = 0.029). Therefore, this study concluded that the level of damage to the connective tissue is greater when exercises involving eccentric muscle actions are performed. The continuity of training, however might reduce this damage.
Authors:
Antonio de C Nogueira; Rodrigo G S Vale; André L M Gomes; Estélio H M Dantas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Research in sports medicine (Print)     Volume:  19     ISSN:  1543-8635     ISO Abbreviation:  Res Sports Med     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101167637     Medline TA:  Res Sports Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  259-70     Citation Subset:  IM    
Affiliation:
a Castelo Branco University , Rio de Janeiro , Brazil.
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