Document Detail

An ultrasound investigation into the morphology of the human abdominal wall uncovers complex deformation patterns during contraction.
MedLine Citation:
PMID:  18726611     Owner:  NLM     Status:  MEDLINE    
The abdominal wall components, specifically muscle and connective tissue, must meet and accommodate a wide range of force demands for torso movement, spine stabilization, and respiration. It has a composite laminate nature that may lend itself to facilitating the required tissue responses. The purpose of this exploratory study was to examine the deformations of the abdominal wall connective tissues, with a special focus on both the internal oblique aponeurosis and the tendinous intersections of the rectus abdominis, using ultrasound imaging, during relatively simple contractions of the abdominal musculature. There were two main findings of this study: (1) deformations occurred in nearly 50% of contractions that would be characterized by a simultaneous expansion in multiple planes; (2) the laterally generated forces of the oblique and transverse muscles transfer a great deal of force across the rectus abdominis muscle and sheath, leading to a lateral movement of the rectus muscle during abdominal contraction.
Stephen H M Brown; Stuart M McGill
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-26
Journal Detail:
Title:  European journal of applied physiology     Volume:  104     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-05     Completed Date:  2009-03-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1021-30     Citation Subset:  IM    
Department of Kinesiology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
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MeSH Terms
Abdominal Muscles / physiology*,  ultrasonography*
Abdominal Wall / physiology*,  ultrasonography*
Connective Tissue / physiology,  ultrasonography
Movement / physiology
Muscle Contraction / physiology*
Posture / physiology

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