Document Detail


Electromyographic activity of selected trunk muscles in subjects with and without hemiparesis during therapeutic exercise.
MedLine Citation:
PMID:  21071243     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The purpose of this study was to evaluate the trunk muscles activity of hemiparetic and control subjects during selected therapeutic exercises with surface electromyography (sEMG). The sEMG evaluation included 12 subjects presenting hemiparesis after having suffered a unilateral stroke and 12 apparently healthy subjects. A 16-channel sEMG system was used; data were band pass filtered from 20 to 450Hz. The signal was normalized through reference voluntary contraction (RVC) and presented in percentage. The exercises used in the evaluations were trunk flexion and trunk extension. Rectus abdominis presented greater activation on the paretic side of the experimental group than on the corresponding side of the control group (P=0.035) (Cohen's d¯=0.94). During leg elevation, the non-paretic obliquus externus abdominis showed greater activation than in other exercises (P=0.019) (Cohen's d¯=0.75). No inter-group differences were found for either erectus spinae activity or contraction onset. Experimental group subjects showed muscle activity alterations, principally in the rectus abdominis, indicating the occurrence of compensatory strategies.
Authors:
Ligia Maxwell Pereira; Fernando Cesar Iwamoto Marcucci; Maryela de Oliveira Menacho; Márcia Regina Garanhani; Edson Lopes Lavado; Jefferson Rosa Cardoso
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Publication Detail:
Type:  Journal Article     Date:  2010-11-10
Journal Detail:
Title:  Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology     Volume:  21     ISSN:  1873-5711     ISO Abbreviation:  J Electromyogr Kinesiol     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-02-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9109125     Medline TA:  J Electromyogr Kinesiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  327-32     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Laboratory of Kinesiologic Electromyography and Kinematic, Physical Therapy Department, Universidade Estadual de Londrina, Parana, Brazil.
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