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Resistive vibration exercise during bed-rest reduces motor control changes in the lumbo-pelvic musculature

Belavy, Daniel und Wilson, Stephen J. und Armbrecht, Gabriele und Rittweger, Jörn und Felsenberg, Dieter und Richardson, Carolyn A. (2012) Resistive vibration exercise during bed-rest reduces motor control changes in the lumbo-pelvic musculature. Journal of Electromyography and Kinesiology, 22, Seiten 21-30. ISSN 1050-6411.

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To understand the effects of a resistive vibration exercise (RVE) countermeasure on changes in lumbopelvic muscle motor control during prolonged bed-rest, 20 male subjects took part in the Berlin Bed-Rest Study (in 2003–2005) and were randomised to a RVE group or an inactive control group. Surface electromyographic signals recorded from five superficial lumbo-pelvic muscles during a repetitive knee movement task. The task, which required stabilisation of the lumbo-pelvic region, was performed at multiple movement speeds and at multiple time points during and after bed-rest. After excluding effects that could be attributed to increases in subcutaneous fat changes and improvements in movement skill, we found that the RVE intervention ameliorated the generalised increases in activity ratios between movement speeds (p 6 0.012), reductions in lumbo-pelvic extensor and flexor co-contraction (p = 0.058) and increases in root-mean-square electromyographic amplitude (p = 0.001) of the lumbar erector spinae muscles. Effects of RVE on preventing increases in amplitude-modulation (p = 0.23) of the lumbar erector spinae muscles were not significant. Few significant changes in activation-timing were seen. The RVE intervention during bed-rest, with indirect loading of the spine during exercise, was capable of reducing some, but not all, motor control changes in the lumbo-pelvic musculature during and after bed-rest.

Titel:Resistive vibration exercise during bed-rest reduces motor control changes in the lumbo-pelvic musculature
AutorenInstitution oder E-Mail-Adresse der Autoren
Belavy, DanielCharité University Medicine Berlin
Wilson, Stephen J.University of Queensland
Armbrecht, GabrieleCharité Campus Benjamin Franklin
Rittweger, Jörnjoern.rittweger@dlr.de
Felsenberg, DieterCharité Campus Benjamin Franklin
Richardson, Carolyn A.University of Queensland
Erschienen in:Journal of Electromyography and Kinesiology
Referierte Publikation:Ja
In ISI Web of Science:Ja
Seitenbereich:Seiten 21-30
Stichwörter:Spaceflight Timing Signal processing Phasic Body composition Low back pain
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Forschung unter Weltraumbedingungen
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R FR - Forschung unter Weltraumbedingungen
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Integrative Studien
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Luft- und Raumfahrtmedizin > Weltraumphysiologie
Hinterlegt von: Jörn Rittweger
Hinterlegt am:24 Jan 2012 09:02
Letzte Änderung:26 Mär 2013 13:36

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