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Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study

Postural control during walking is maintained by the combination of various factors. Among these factors, adjustment of trunk movement is essential for maintaining postural control, and the response of muscles to unpredictable stimuli affects postural control. Loss of balance while walking increases...

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Autores principales: Jung, Jaehyun, Kim, Kewwan, Choi, Sungjae, Song, Gwangyu, Ryu, Young, Kim, Cholhee, Lim, Chaegil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125989/
https://www.ncbi.nlm.nih.gov/pubmed/34068484
http://dx.doi.org/10.3390/ijerph18095015
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author Jung, Jaehyun
Kim, Kewwan
Choi, Sungjae
Song, Gwangyu
Ryu, Young
Kim, Cholhee
Lim, Chaegil
author_facet Jung, Jaehyun
Kim, Kewwan
Choi, Sungjae
Song, Gwangyu
Ryu, Young
Kim, Cholhee
Lim, Chaegil
author_sort Jung, Jaehyun
collection PubMed
description Postural control during walking is maintained by the combination of various factors. Among these factors, adjustment of trunk movement is essential for maintaining postural control, and the response of muscles to unpredictable stimuli affects postural control. Loss of balance while walking increases the risk of accidents, the frequency of which depends on age and sex. In this study, we investigated whether there was a difference in the movement time of trunk muscles to sudden stimulation while walking according to age and sex. Fourteen healthy individuals aged 20–30 years (6 men, 8 women) and 12 individuals aged 50–70 years (4 men, 8 women) were included in the study. Movement time of bilateral erector spinae and rectus abdominis muscles in response to visual stimulation during walking was examined using surface electromyography. Movement time was calculated as the total muscle activation time excluding the reaction time. This study revealed no significant differences in movement time of the erector spinae muscles according to sex or age. The role of the rectus abdominis muscles in maintaining posture during walking was insignificant. In conclusion, the movement time of trunk muscles in response to sudden visual stimulation during walking did not differ by age or sex, and the difference in accident frequency may be associated with deterioration of other factors required to maintain posture.
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spelling pubmed-81259892021-05-17 Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study Jung, Jaehyun Kim, Kewwan Choi, Sungjae Song, Gwangyu Ryu, Young Kim, Cholhee Lim, Chaegil Int J Environ Res Public Health Article Postural control during walking is maintained by the combination of various factors. Among these factors, adjustment of trunk movement is essential for maintaining postural control, and the response of muscles to unpredictable stimuli affects postural control. Loss of balance while walking increases the risk of accidents, the frequency of which depends on age and sex. In this study, we investigated whether there was a difference in the movement time of trunk muscles to sudden stimulation while walking according to age and sex. Fourteen healthy individuals aged 20–30 years (6 men, 8 women) and 12 individuals aged 50–70 years (4 men, 8 women) were included in the study. Movement time of bilateral erector spinae and rectus abdominis muscles in response to visual stimulation during walking was examined using surface electromyography. Movement time was calculated as the total muscle activation time excluding the reaction time. This study revealed no significant differences in movement time of the erector spinae muscles according to sex or age. The role of the rectus abdominis muscles in maintaining posture during walking was insignificant. In conclusion, the movement time of trunk muscles in response to sudden visual stimulation during walking did not differ by age or sex, and the difference in accident frequency may be associated with deterioration of other factors required to maintain posture. MDPI 2021-05-10 /pmc/articles/PMC8125989/ /pubmed/34068484 http://dx.doi.org/10.3390/ijerph18095015 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jung, Jaehyun
Kim, Kewwan
Choi, Sungjae
Song, Gwangyu
Ryu, Young
Kim, Cholhee
Lim, Chaegil
Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title_full Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title_fullStr Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title_full_unstemmed Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title_short Movement Time of Lower Trunk Muscles during Dynamic Postural Control in Response to a Sudden Visual Stimulus during Walking: A Pilot Study
title_sort movement time of lower trunk muscles during dynamic postural control in response to a sudden visual stimulus during walking: a pilot study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8125989/
https://www.ncbi.nlm.nih.gov/pubmed/34068484
http://dx.doi.org/10.3390/ijerph18095015
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