Artificial gravity exposure impairs exercise-related neurophysiological benefits

T Vogt; V Abeln; H K Struder; Stefan Schneider

doi:10.1016/j.physbeh.2013.10.020

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Artificial gravity exposure impairs exercise-related neurophysiological benefits

Journal article

Peer reviewed

Artificial gravity exposure impairs exercise-related neurophysiological benefits

T Vogt, V Abeln, H K Struder and Stefan Schneider

Physiology & Behavior, Vol.123, pp.156-161

2014

DOI: https://doi.org/10.1016/j.physbeh.2013.10.020

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Abstract

alpha

artificial gravity

beta

cognitive performance

EEG

exercise

Artificial gravity (AG) exposure is suggested to counteract health deconditioning, theoretically complementing exercise during space habitations. Exercise-benefits on mental health are well documented (i.e. well-being, enhanced executive functions). Although AG is coherent for the integrity of fundamental physiological systems, the effects of its exposure on neurophysiological processes related to cognitive performance are poorly understood and therefore characterize the primary aim of this study. 16 healthy males participated in two randomly assigned sessions, AG and exercise (30. minute each). Participants were exposed to AG at continuous +. 2Gz in a short-arm human centrifuge and performed moderate exercise (cycling ergometer). Using 64 active electrodes, resting EEG was recorded before (pre), immediately after (post), and 15. min after (post15) each session. Alpha (7.5-12.5. Hz) and beta frequencies (12.5-35.0. Hz) were exported for analysis. Cognitive performance and mood states were assessed before and after each session. Cognitive performance improved after exercise (p. less than. 0.05), but not after AG. This was reflected by typical EEG patterns after exercise, however not after AG. Frontal alpha (post p. less than. 0.01, post15 p. less than. 0.001) and beta activity (post15 p. less than. 0.001) increased after AG compared to a decrease in frontal alpha (post15 p. less than. 0.05) and beta activity (post p. less than. 0.01) after exercise. Relaxed cortical states were indicated after exercise, but were less apparent after AG. Changes in mood states failed significance after both sessions. Summarized, the benefits to mental health, recorded after exercise, were absent after AG, indicating that AG might cause neurocognitive deconditioning.

Details

Title: Artificial gravity exposure impairs exercise-related neurophysiological benefits
Authors: T Vogt (Author) - German Sport University, Germany
V Abeln (Author) - German Sport University, Germany
H K Struder (Author) - German Sport University, Germany
Stefan Schneider (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Physiology & Behavior, Vol.123, pp.156-161
Publisher: Elsevier Inc.
Date published: 2014
DOI: 10.1016/j.physbeh.2013.10.020
ISSN: 0031-9384
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99447767502621
Output Type: Journal article

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Web Of Science research areas: Behavioral Sciences; Psychology, Biological

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