Altered response of the anterolateral abdominal muscles to simulated weight-bearing in subjects with low back pain

Hides, Julie A., Belavý, Daniel L., Cassar, Lana, Williams, Michella, Wilson, Stephen J. and Richardson, Carolyn A. 2009, Altered response of the anterolateral abdominal muscles to simulated weight-bearing in subjects with low back pain, European spine journal, vol. 18, no. 3, pp. 410-418, doi: 10.1007/s00586-008-0827-2.

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Title Altered response of the anterolateral abdominal muscles to simulated weight-bearing in subjects with low back pain
Author(s) Hides, Julie A.
Belavý, Daniel L.ORCID iD for Belavý, Daniel L.
Cassar, Lana
Williams, Michella
Wilson, Stephen J.
Richardson, Carolyn A.
Journal name European spine journal
Volume number 18
Issue number 3
Start page 410
End page 418
Total pages 9
Publisher Springer
Place of publication Berlin, Germany
Publication date 2009-03
ISSN 1432-0932
Summary An important aspect of neuromuscular control at the lumbo-pelvic region is stabilization. Subjects with low back pain (LBP) have been shown to exhibit impairments in motor control of key muscles which contribute to stabilization of the lumbo-pelvic region. However, a test of automatic recruitment that relates to function has been lacking. A previous study used ultrasound imaging to show that healthy subjects automatically recruited the transversus abdominis (TrA) and internal oblique (IO) muscles in response to a simulated weight-bearing task. This task has not been investigated in subjects with LBP. The aim of this study was to compare the automatic recruitment of the abdominal muscles among subjects with and without LBP in response to the simulated weight-bearing task. Twenty subjects with and without LBP were tested. Real-time ultrasound imaging was used to assess changes in thickness of the TrA and internal oblique IO muscles as well as lateral movement ("slide") of the anterior fascial insertion of the TrA muscle. Results showed that subjects with LBP showed significantly less shortening of the TrA muscle (P < 0.0001) and greater increases in thickness of the IO muscle (P = 0.002) with the simulated weight-bearing task. There was no significant difference between groups for changes in TrA muscle thickness (P = 0.055). This study provides evidence of changes in motor control of the abdominal muscles in subjects with LBP. This test may provide a functionally relevant and non-invasive method to investigate the automatic recruitment of the abdominal muscles in people with and without LBP.
Language eng
DOI 10.1007/s00586-008-0827-2
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 920299 Health and Support Services not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2009, Springer
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Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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