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Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight

Adaptation to microgravity causes astronauts to experience sensorimotor disturbances during return to Earth leading to functional difficulties. Recently, the Field Test (FT) study involving an incrementally demanding sensorimotor functional test battery has allowed for an unprecedented view into ear...

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Autores principales: Rosenberg, Marissa J., Reschke, Millard F., Tomilovskaya, Elena S., Wood, Scott J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9515505/
https://www.ncbi.nlm.nih.gov/pubmed/36187781
http://dx.doi.org/10.3389/fphys.2022.921368
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author Rosenberg, Marissa J.
Reschke, Millard F.
Tomilovskaya, Elena S.
Wood, Scott J.
author_facet Rosenberg, Marissa J.
Reschke, Millard F.
Tomilovskaya, Elena S.
Wood, Scott J.
author_sort Rosenberg, Marissa J.
collection PubMed
description Adaptation to microgravity causes astronauts to experience sensorimotor disturbances during return to Earth leading to functional difficulties. Recently, the Field Test (FT) study involving an incrementally demanding sensorimotor functional test battery has allowed for an unprecedented view into early decrements and recovery from multiple tests conducted on the landing day following 6-months International Space Station missions. Although the protocol was challenging and temporarily increased motion sickness symptoms, there were anecdotal reports that performing these tasks within the first few hours of landing accelerated their recovery. Therefore, results from computerized dynamic posturography (CDP) following return to Houston were used to compare recovery between crewmembers that participated in FT (n = 18) with those that did not (controls, n = 11). While there were significant decrements in postural performance for both groups, some FT participants tended to perform closer to their preflight baseline in the most challenging condition of the CDP sensitive to vestibular function—eyes closed, unstable support and head movements. However, the distribution of difference scores appeared bimodal with other FT participants in the lower range of performance. We attribute these observations to the manner in which the field tests were implemented—some benefitted by encouraging early movement to drive adaptation when performed in a constrained incremental fashion; however, movements above aversive thresholds may have impaired adaptation in others. Challenging the sensorimotor system with increasingly provocative movements performed as close to landing as possible, as long as within individual thresholds, could be a useful intervention to accelerate astronaut’s sensorimotor readaptation that deserves further study.
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spelling pubmed-95155052022-09-29 Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight Rosenberg, Marissa J. Reschke, Millard F. Tomilovskaya, Elena S. Wood, Scott J. Front Physiol Physiology Adaptation to microgravity causes astronauts to experience sensorimotor disturbances during return to Earth leading to functional difficulties. Recently, the Field Test (FT) study involving an incrementally demanding sensorimotor functional test battery has allowed for an unprecedented view into early decrements and recovery from multiple tests conducted on the landing day following 6-months International Space Station missions. Although the protocol was challenging and temporarily increased motion sickness symptoms, there were anecdotal reports that performing these tasks within the first few hours of landing accelerated their recovery. Therefore, results from computerized dynamic posturography (CDP) following return to Houston were used to compare recovery between crewmembers that participated in FT (n = 18) with those that did not (controls, n = 11). While there were significant decrements in postural performance for both groups, some FT participants tended to perform closer to their preflight baseline in the most challenging condition of the CDP sensitive to vestibular function—eyes closed, unstable support and head movements. However, the distribution of difference scores appeared bimodal with other FT participants in the lower range of performance. We attribute these observations to the manner in which the field tests were implemented—some benefitted by encouraging early movement to drive adaptation when performed in a constrained incremental fashion; however, movements above aversive thresholds may have impaired adaptation in others. Challenging the sensorimotor system with increasingly provocative movements performed as close to landing as possible, as long as within individual thresholds, could be a useful intervention to accelerate astronaut’s sensorimotor readaptation that deserves further study. Frontiers Media S.A. 2022-09-14 /pmc/articles/PMC9515505/ /pubmed/36187781 http://dx.doi.org/10.3389/fphys.2022.921368 Text en Copyright © 2022 Rosenberg, Reschke, Tomilovskaya and Wood. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Physiology
Rosenberg, Marissa J.
Reschke, Millard F.
Tomilovskaya, Elena S.
Wood, Scott J.
Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title_full Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title_fullStr Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title_full_unstemmed Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title_short Multiple field tests on landing day: Early mobility may improve postural recovery following spaceflight
title_sort multiple field tests on landing day: early mobility may improve postural recovery following spaceflight
topic Physiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9515505/
https://www.ncbi.nlm.nih.gov/pubmed/36187781
http://dx.doi.org/10.3389/fphys.2022.921368
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