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Effect of dance on multi-muscle synergies in older adults: a cross-sectional study

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Title: Effect of dance on multi-muscle synergies in older adults: a cross-sectional study
Authors: Wang, Yun Browse this author
Watanabe, Kazuhiko Browse this author
Asaka, Tadayoshi Browse this author →KAKEN DB
Keywords: Synergy
Anticipatory adjustments
Older adults
Issue Date: 3-Dec-2019
Publisher: BioMed Central
Journal Title: BMC geriatrics
Volume: 19
Issue: 1
Start Page: 340
Publisher DOI: 10.1186/s12877-019-1365-y
PMID: 31795946
Abstract: Background: The purpose of this study was to investigate the efficacy of dance in the experienced older dancers compared to the inexperienced older adults. We explored the effect of dance on the composition of muscle groups and multi-muscle synergies stabilizing the center of pressure (COP) displacement in preparation to take a step during support surface translation. Methods: Eight dance experienced elderly participants were asked to take a step in response to support surface perturbations. Uncontrolled manifold analysis was used to identify muscle modes (M-modes) as factors in the muscle activation space. Variance components in the M-mode space and indices of M-mode synergy stabilizing COP displacement were computed. Results: The reciprocal M-modes were observed more frequently in the dance group than in the control group prior to the step initiation. Dance led to higher indices of multi-muscle synergies and earlier anticipatory synergy adjustments during preparation for making a step in response to the support surface translations. Conclusions: Dance appeared to be associated with adjustments in both the composition of M-modes and M-mode co-variation patterns resulting in stronger synergies stabilizing COP coordinate in older adults. The results reported here could have clinical relevance when offering a dance approach to balance training for impaired individuals.
Type: article
Appears in Collections:保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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