Title
Effects of five days of bed rest with and without exercise countermeasure on postural stability and gaitEffects of five days of bed rest with and without exercise countermeasure on postural stability and gait
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Biophysics and Biomedical Physics
Publication type
article
Publication
Subject
Human medicine
Source (journal)
The Journal of Musculoskeletal and Neuronal Interactions
Volume/pages
14(2014):3, p. 359-366
ISSN
1108-7161
ISI
000346815600014
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
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 degrees 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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/fad473/9416.pdf
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