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Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study

BACKGROUND: Muscle co-activation plays an important role in enhancing joint stability for movement regulation during motor learning activities. In normal aging, greater muscle co-activation is induced during gait in elderly adults. This study investigated age-related changes in muscle co-activation...

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Autores principales: Lee, Hwang-Jae, Chang, Won Hyuk, Choi, Byung-Ok, Ryu, Gyu-Ha, Kim, Yun-Hee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5286798/
https://www.ncbi.nlm.nih.gov/pubmed/28143609
http://dx.doi.org/10.1186/s12877-017-0417-4
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author Lee, Hwang-Jae
Chang, Won Hyuk
Choi, Byung-Ok
Ryu, Gyu-Ha
Kim, Yun-Hee
author_facet Lee, Hwang-Jae
Chang, Won Hyuk
Choi, Byung-Ok
Ryu, Gyu-Ha
Kim, Yun-Hee
author_sort Lee, Hwang-Jae
collection PubMed
description BACKGROUND: Muscle co-activation plays an important role in enhancing joint stability for movement regulation during motor learning activities. In normal aging, greater muscle co-activation is induced during gait in elderly adults. This study investigated age-related changes in muscle co-activation and spatio-temporal parameters during gait and identified the relationship between muscle co-activation and gait speed. METHODS: A total of 46 adult volunteers participated in this study in three age groups (15 young adults [8 males, 7 females; age, 24.27 ± 2.71], 15 middle-aged adults [8 males, 7 females; age, 53.71 ± 2.52], and 16 elderly adults [7 males, 9 females; age, 76.88 ± 3.48]). All participants underwent locomotion analysis using a Three-dimensional motion analysis system and 12-channel dynamic electromyography. RESULTS: The elderly adults showed significantly higher co-activation than the young and middle-aged adults during gait (p < 0.05). In contrast, elderly adults showed significantly lower trunk co-activation than the young and middle-aged adults (p < 0.05). Muscle co-activation was significantly correlated with gait speed by aging. Muscle co-activation of the trunk showed a significant positive correlation with gait speed based on age. However, muscle co-activation of the lower extremity showed a significant negative correlation with gait speed based on age. CONCLUSION: This finding demonstrated that less muscle co-activation of the trunk was related to locomotive instability in elderly adults. Therefore, clarification of the relationship between trunk co-activation and locomotor instability will be helpful for developing optimal rehabilitation of elderly people to prevent fall.
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spelling pubmed-52867982017-02-06 Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study Lee, Hwang-Jae Chang, Won Hyuk Choi, Byung-Ok Ryu, Gyu-Ha Kim, Yun-Hee BMC Geriatr Research Article BACKGROUND: Muscle co-activation plays an important role in enhancing joint stability for movement regulation during motor learning activities. In normal aging, greater muscle co-activation is induced during gait in elderly adults. This study investigated age-related changes in muscle co-activation and spatio-temporal parameters during gait and identified the relationship between muscle co-activation and gait speed. METHODS: A total of 46 adult volunteers participated in this study in three age groups (15 young adults [8 males, 7 females; age, 24.27 ± 2.71], 15 middle-aged adults [8 males, 7 females; age, 53.71 ± 2.52], and 16 elderly adults [7 males, 9 females; age, 76.88 ± 3.48]). All participants underwent locomotion analysis using a Three-dimensional motion analysis system and 12-channel dynamic electromyography. RESULTS: The elderly adults showed significantly higher co-activation than the young and middle-aged adults during gait (p < 0.05). In contrast, elderly adults showed significantly lower trunk co-activation than the young and middle-aged adults (p < 0.05). Muscle co-activation was significantly correlated with gait speed by aging. Muscle co-activation of the trunk showed a significant positive correlation with gait speed based on age. However, muscle co-activation of the lower extremity showed a significant negative correlation with gait speed based on age. CONCLUSION: This finding demonstrated that less muscle co-activation of the trunk was related to locomotive instability in elderly adults. Therefore, clarification of the relationship between trunk co-activation and locomotor instability will be helpful for developing optimal rehabilitation of elderly people to prevent fall. BioMed Central 2017-01-31 /pmc/articles/PMC5286798/ /pubmed/28143609 http://dx.doi.org/10.1186/s12877-017-0417-4 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Lee, Hwang-Jae
Chang, Won Hyuk
Choi, Byung-Ok
Ryu, Gyu-Ha
Kim, Yun-Hee
Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title_full Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title_fullStr Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title_full_unstemmed Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title_short Age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
title_sort age-related differences in muscle co-activation during locomotion and their relationship with gait speed: a pilot study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5286798/
https://www.ncbi.nlm.nih.gov/pubmed/28143609
http://dx.doi.org/10.1186/s12877-017-0417-4
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