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Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments

OBJECTIVE: To examine the relationship between temporal asymmetry and complexity of muscle synergy during walking using rhythmic auditory cueing (RAC) and the factors related to changes in muscle synergy during walking with RAC in survivors of stroke. DESIGN: Cross-sectional study. SETTING: Wards at...

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Autores principales: Mizuta, Naomichi, Hasui, Naruhito, Nishi, Yuki, Higa, Yasutaka, Matsunaga, Ayaka, Deguchi, Junji, Yamamoto, Yasutada, Nakatani, Tomoki, Taguchi, Junji, Morioka, Shu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9214337/
https://www.ncbi.nlm.nih.gov/pubmed/35756980
http://dx.doi.org/10.1016/j.arrct.2022.100187
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author Mizuta, Naomichi
Hasui, Naruhito
Nishi, Yuki
Higa, Yasutaka
Matsunaga, Ayaka
Deguchi, Junji
Yamamoto, Yasutada
Nakatani, Tomoki
Taguchi, Junji
Morioka, Shu
author_facet Mizuta, Naomichi
Hasui, Naruhito
Nishi, Yuki
Higa, Yasutaka
Matsunaga, Ayaka
Deguchi, Junji
Yamamoto, Yasutada
Nakatani, Tomoki
Taguchi, Junji
Morioka, Shu
author_sort Mizuta, Naomichi
collection PubMed
description OBJECTIVE: To examine the relationship between temporal asymmetry and complexity of muscle synergy during walking using rhythmic auditory cueing (RAC) and the factors related to changes in muscle synergy during walking with RAC in survivors of stroke. DESIGN: Cross-sectional study. SETTING: Wards at 2 medical corporation hospitals. PARTICIPANTS: Forty survivors of stroke (N=40; mean age, 70.4±10.3 years; time since stroke, 72.2±32.3 days) who could walk without physical assistance. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The participants were assessed in a random block design under 2 conditions: comfortable walking speed (CWS) and walking with RAC. Single-leg support time, kinematics, and electromyograms were measured. Factors related to the complexity of muscle synergy (variance accounted for by 1 synergy [VAF1]) between the walking conditions were examined using hierarchical multiple regression analysis. RESULTS: In the RAC condition, lower limb flexion and knee flexion angles, single-leg support time on the paretic side, and the symmetry index of single-leg support time were increased compared with those in the CWS condition. VAF1 was decreased in the RAC condition (73.9±0.15) compared with that in the CWS condition (76.9±0.13, P=.002). Hierarchical multiple regression analysis revealed that the change in VAF1 was explained by change in single-leg support time (R(2)=0.43, P=.002). CONCLUSIONS: The RAC condition demonstrated a more complex representation of muscle synergy than the CWS condition; the change in single-leg support time on the paretic side related to the changes in muscle synergy more than changes in lower limb angle. These findings can help in the walking-training concept to improve muscle synergy deficits in survivors of stroke.
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spelling pubmed-92143372022-06-23 Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments Mizuta, Naomichi Hasui, Naruhito Nishi, Yuki Higa, Yasutaka Matsunaga, Ayaka Deguchi, Junji Yamamoto, Yasutada Nakatani, Tomoki Taguchi, Junji Morioka, Shu Arch Rehabil Res Clin Transl Original Research OBJECTIVE: To examine the relationship between temporal asymmetry and complexity of muscle synergy during walking using rhythmic auditory cueing (RAC) and the factors related to changes in muscle synergy during walking with RAC in survivors of stroke. DESIGN: Cross-sectional study. SETTING: Wards at 2 medical corporation hospitals. PARTICIPANTS: Forty survivors of stroke (N=40; mean age, 70.4±10.3 years; time since stroke, 72.2±32.3 days) who could walk without physical assistance. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The participants were assessed in a random block design under 2 conditions: comfortable walking speed (CWS) and walking with RAC. Single-leg support time, kinematics, and electromyograms were measured. Factors related to the complexity of muscle synergy (variance accounted for by 1 synergy [VAF1]) between the walking conditions were examined using hierarchical multiple regression analysis. RESULTS: In the RAC condition, lower limb flexion and knee flexion angles, single-leg support time on the paretic side, and the symmetry index of single-leg support time were increased compared with those in the CWS condition. VAF1 was decreased in the RAC condition (73.9±0.15) compared with that in the CWS condition (76.9±0.13, P=.002). Hierarchical multiple regression analysis revealed that the change in VAF1 was explained by change in single-leg support time (R(2)=0.43, P=.002). CONCLUSIONS: The RAC condition demonstrated a more complex representation of muscle synergy than the CWS condition; the change in single-leg support time on the paretic side related to the changes in muscle synergy more than changes in lower limb angle. These findings can help in the walking-training concept to improve muscle synergy deficits in survivors of stroke. Elsevier 2022-02-24 /pmc/articles/PMC9214337/ /pubmed/35756980 http://dx.doi.org/10.1016/j.arrct.2022.100187 Text en © 2022 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Original Research
Mizuta, Naomichi
Hasui, Naruhito
Nishi, Yuki
Higa, Yasutaka
Matsunaga, Ayaka
Deguchi, Junji
Yamamoto, Yasutada
Nakatani, Tomoki
Taguchi, Junji
Morioka, Shu
Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title_full Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title_fullStr Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title_full_unstemmed Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title_short Association Between Temporal Asymmetry and Muscle Synergy During Walking With Rhythmic Auditory Cueing in Survivors of Stroke Living With Impairments
title_sort association between temporal asymmetry and muscle synergy during walking with rhythmic auditory cueing in survivors of stroke living with impairments
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9214337/
https://www.ncbi.nlm.nih.gov/pubmed/35756980
http://dx.doi.org/10.1016/j.arrct.2022.100187
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