Countermeasures against lumbar spine deconditioning in prolonged bed rest: Resistive exercise with and without whole body vibration

Belavy, Daniel L., Armbrecht, Gabriele, Gast, Ulf, Richardson, Carolyn A., Hides, Julie A. and Felsenberg, Dieter (2010) Countermeasures against lumbar spine deconditioning in prolonged bed rest: Resistive exercise with and without whole body vibration. Journal of Applied Physiology, 109 6: 1801-1811. doi:10.1152/japplphysiol.00707.2010


Author Belavy, Daniel L.
Armbrecht, Gabriele
Gast, Ulf
Richardson, Carolyn A.
Hides, Julie A.
Felsenberg, Dieter
Title Countermeasures against lumbar spine deconditioning in prolonged bed rest: Resistive exercise with and without whole body vibration
Journal name Journal of Applied Physiology   Check publisher's open access policy
ISSN 8750-7587
1522-1601
Publication date 2010-12
Sub-type Article (original research)
DOI 10.1152/japplphysiol.00707.2010
Volume 109
Issue 6
Start page 1801
End page 1811
Total pages 11
Place of publication Bethesda MD, U.S.A.
Publisher American Physiological Society
Collection year 2011
Language eng
Formatted abstract
To evaluate the effect of short-duration, high-load resistive exercise, with and without whole body vibration on lumbar muscle size, intervertebral disk and spinal morphology changes, and low back pain (LBP) incidence during prolonged bed rest, 24 subjects underwent 60 days of head-down tilt bed rest and performed either resistive vibration exercise (n = 7), resistive exercise only (n = 8), or no exercise (n = 9; 2nd Berlin Bed-Rest Study). Discal and spinal shape was measured from sagittal plane magnetic resonance images. Cross-sectional areas (CSAs) of the multifidus, erector spinae, quadratus lumborum, and psoas were measured on para-axial magnetic resonance images. LBP incidence was assessed with questionnaires at regular intervals. The countermeasures reduced CSA loss in the multifidus, lumbar erector spinae and quadratus lumborum muscles, with greater increases in psoas muscle CSA seen in the countermeasure groups (P ≤ 0.004). There was little statistical evidence for an additional effect of whole body vibration above resistive exercise alone on these muscle changes. Exercise subjects reported LBP more frequently in the first week of bed rest, but this was only significant in resistive exercise only (P = 0.011 vs. control, resistive vibration exercise vs. control: P = 0.56). No effect of the countermeasures on changes in spinal morphology was seen (P ≥ 0.22). The results suggest that high-load resistive exercise, with or without whole body vibration, performed 3 days/wk can reduce lumbar muscle atrophy, but further countermeasure optimization is required
© 2010 the American Physiological Society.

Keyword Magnetic resonance imaging
Microgravity
Spaceflight
Countermeasures
Intervertebral disk
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Health and Rehabilitation Sciences Publications
 
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Created: Sun, 16 Jan 2011, 00:06:47 EST