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A comparison of 2 assessment protocols to specifically target abdominal muscle endurance.
MedLine Citation:
PMID:  21492754     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to compare 2 variations of a test designed to evaluate abdominal muscle endurance.
METHODS: This study included 21 healthy adults (10 men and 11 women) aged 23.2 ± 3.3 years. Participants recruited from a chiropractic institution performed 2 fatiguing protocols (with a lordotic posture or free of instructions), each immediately preceded and followed by a maximum voluntary contraction. Force data and surface electromyography of 6 muscles were recorded. The influence of posture on endurance time as well as the effect of posture on MedF/time slopes for each individual muscle throughout the first 4 30-seconds time segments was assessed.
RESULTS: Mean time until exhaustion was 261.3 ± 149.8 seconds for the lordotic condition and 358.8 ± 206.4 seconds for the free condition. The lordotic condition induced significantly more fatigue than the free condition in 3 muscles during the first 30 seconds. However, both conditions induced similar levels of fatigue for the following 30 seconds. After the first 60 seconds, no significant differences in fatigability were noted between the 2 experimental conditions.
CONCLUSION: For the subjects studied, lumbar lordosis had a significant influence on trunk muscle fatigue during abdominal muscle endurance assessment. Specifically targeting the abdominal muscles during an endurance task remains a challenge.
Authors:
Isabelle Pagé; Jean-Daniel Dubois; Martin Descarreaux
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of manipulative and physiological therapeutics     Volume:  34     ISSN:  1532-6586     ISO Abbreviation:  J Manipulative Physiol Ther     Publication Date:    2011 Mar-Apr
Date Detail:
Created Date:  2011-04-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7807107     Medline TA:  J Manipulative Physiol Ther     Country:  United States    
Other Details:
Languages:  eng     Pagination:  188-94     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 National University of Health Sciences. Published by Mosby, Inc. All rights reserved.
Affiliation:
Student, Département de Chiropratique, Université du Québec à Trois-Rivières, Quebec, Canada.
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