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Effects of five days of bed rest with and without exercise countermeasure on postural stability and gait

Mulder, Edwin and Linnarsson, Dag and Paloski, William and Rittweger, Jörn and Wuyts, F.L. and Zange, Jochen and Clément, Gilles (2014) Effects of five days of bed rest with and without exercise countermeasure on postural stability and gait. Journal of Musculoskeletal and Neuronal Interactions, 14 (3), pp. 359-366. International Society of Musculoskeletal and Neuronal Interactions. ISSN 1108-7161

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Abstract

OBJECTIVES: We tested whether intermittent standing or a combination of heel raising, squatting and hopping exercises was sufficient to prevent alteration in balance and gait following a 5-day bed rest. METHODS: This cross-over design study was performed with 10 male subjects during 6° head down tilt: (a) with no countermeasure; (b) while standing 25 min per day; (c) during locomotion-like activities 25 min per day. Gait was evaluated by grading subjects' performance during various locomotion tasks. Equilibrium scores were derived from peak-to-peak anterior-posterior sway while standing on a foam pad with the eyes open or closed or while making pitch head movements. RESULTS: When no countermeasure was used, head movements led to decreased postural stability and increased incidence of falls immediately after bed rest compared to before. When upright standing or locomotion-like exercises were used, postural stability and the incidence of falls were not significantly different after the bed rest from the baseline. CONCLUSION: These results indicate that daily 25-min of standing or locomotion-like exercise proves useful against postural instability following a 5-day bed rest. The efficacy of these countermeasures on locomotion could not be evaluated, however, because gait was not found to be altered after a 5-day bed rest.

Item URL in elib:https://elib.dlr.de/91288/
Document Type:Article
Title:Effects of five days of bed rest with and without exercise countermeasure on postural stability and gait
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Mulder, EdwinGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Space Physiology, Cologne, GermanyUNSPECIFIED
Linnarsson, DagKarolinska Institutet, Dep. of Physiology and Pharmacology, Sect. of Environmental Physiology, Stockholm, SwedenUNSPECIFIED
Paloski, WilliamUniversity of HoustonUNSPECIFIED
Rittweger, JörnInstitute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany and Medical Faculty, University of Cologne, Cologne, Germany; joern.rittweger (at) dlr.deUNSPECIFIED
Wuyts, F.L.UNSPECIFIEDUNSPECIFIED
Zange, JochenGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Space Physiology, Cologne, Germany; and Medical Faculty of the University of Cologne, Cologne, Germany; jochen.zange (at) dlr.deUNSPECIFIED
Clément, GillesInternational Space University, Strasbourg, France, EUUNSPECIFIED
Date:2014
Journal or Publication Title:Journal of Musculoskeletal and Neuronal Interactions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:14
Page Range:pp. 359-366
Editors:
EditorsEmail
Jee, Webster S.S.Salt Lake City (U.S.A.)
Publisher:International Society of Musculoskeletal and Neuronal Interactions
ISSN:1108-7161
Status:Published
Keywords:Posturography, Balance, Gait, Bed Rest, Centrifugation, Artificial Gravity
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Integrative Studien (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Space Physiology
Deposited By: Becker, Christine
Deposited On:28 Oct 2014 12:37
Last Modified:10 Jan 2019 15:51

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