Effect of prolonged bed rest on the anterior hip muscles

Mendis, M. Dilani, Hides, Julie A., Wilson, Stephen J., Grimaldi, Alison, Belavý, Daniel L., Stanton, Warren, Felsenberg, Dieter, Rittweger,Joern and Richardson, Carolyn 2009, Effect of prolonged bed rest on the anterior hip muscles, Gait and posture, vol. 30, no. 4, pp. 533-537, doi: 10.1016/j.gaitpost.2009.08.002.

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Title Effect of prolonged bed rest on the anterior hip muscles
Author(s) Mendis, M. Dilani
Hides, Julie A.
Wilson, Stephen J.
Grimaldi, Alison
Belavý, Daniel L.ORCID iD for Belavý, Daniel L. orcid.org/0000-0002-9307-832X
Stanton, Warren
Felsenberg, Dieter
Richardson, Carolyn
Journal name Gait and posture
Volume number 30
Issue number 4
Start page 533
End page 537
Total pages 5
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2009-11
ISSN 1879-2219
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Sport Sciences
Neurosciences & Neurology
Hip joint
Muscle atrophy
Summary Prolonged bed rest and inactivity is known to cause muscular atrophy with previous research indicating that muscles involved in joint stabilisation are more susceptible. The anterior hip muscles are important for hip joint function and stability but little is known about the effects of prolonged inactivity on their function. This study investigated the effect of prolonged bed rest on the size of the anterior hip muscles and their pattern of recovery. The effect of resistive vibration exercise (RVE) as a countermeasure to muscle atrophy was also investigated. 12 male participants, randomly assigned to either a control or an exercise group, underwent 8 weeks of bed rest with 6 months follow-up. Changes in muscle cross-sectional area (CSA) of the iliacus, psoas, iliopsoas, sartorius and rectus femoris muscles were measured by magnetic resonance imaging at regular intervals during bed rest and recovery phases. CSAs of iliopsoas and sartorius decreased at the hip joint (p<0.05) during bed rest but iliacus, psoas, and rectus femoris CSAs were unchanged (p>0.05). No significant difference was found between the two groups for all muscles (all p>0.1), suggesting inefficacy of the countermeasure in this sample. These findings suggest that prolonged bed rest can result in the atrophy of specific muscles across the hip joint which may affect its stability and function.
Language eng
DOI 10.1016/j.gaitpost.2009.08.002
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, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30071025

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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