Document Detail

Transversus abdominis: changes in thickness during the unsupported upper limb exercise test in older adults.
MedLine Citation:
PMID:  19925260     Owner:  NLM     Status:  MEDLINE    
Novel, short-lived upper limb tasks performed by young adults have been used to investigate the role of transversus abdominis (TrA) in maintaining postural stability. Little information exists concerning the behaviour of TrA in older adults during protracted postural challenges. The primary aim of this study was to describe the change in thickness of TrA during an incremental upper limb exercise test in older adults. A secondary analysis was undertaken to compare the results between younger and older subjects. Healthy subjects aged between 40 and 70 years performed the Unsupported Upper Limb Exercise Test (UULEX) while activity of TrA was continuously monitored by using rehabilitative ultrasound imaging. Changes in muscle dimensions were measured every minute during the test. The thickness of TrA increased significantly and exponentially between minutes 8 and 13 of the UULEX. Although there was a significant difference between older and younger subjects in absolute measures of TrA thickness, the change in TrA thickness as a percentage of resting thickness during the UULEX demonstrated an identical pattern between younger and older subjects. This study suggests that TrA is continually and increasingly active during an upper limb task in both younger and older asymptomatic subjects.
Ian Fulton; Maureen McEvoy; John Pieterse; Marie Williams; Kerry Thoirs; John Petkov
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physiotherapy theory and practice     Volume:  25     ISSN:  1532-5040     ISO Abbreviation:  Physiother Theory Pract     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-20     Completed Date:  2010-02-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9015520     Medline TA:  Physiother Theory Pract     Country:  England    
Other Details:
Languages:  eng     Pagination:  523-32     Citation Subset:  IM    
School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia.
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MeSH Terms
Abdominal Muscles / physiology*,  ultrasonography
Exercise Test
Middle Aged
Upper Extremity / physiology*

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