ArticleEuropean journal of applied physiology2016
Muscle synergies underlying control of taking a step during support surface translation.
Article in European journal of applied physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Effects of first-step constraints on multi-muscle synergies and early postural adjustments during step initiation.Experimental brain research · 2026Article
- Muscle activation patterns and muscle synergies reflect different modes of coordination during upper extremity movement.Frontiers in human neuroscience · 2022Article
- Muscle synergy differences between voluntary and reactive backward stepping.Scientific reports · 2021Article
- Effect of dance on multi-muscle synergies in older adults: a cross-sectional study.BMC geriatrics · 2019Article
- Aging effect on muscle synergies in stepping forth during a forward perturbation.European journal of applied physiology · 2017Article
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Authors and funding
4 authors.
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Abstract
purposeWe investigated the muscle activation patterns and the center of pressure (COP) displacement in stepping behavior to determine the relations between anticipatory synergy adjustments (ASAs) and anticipatory postural adjustments (APAs) during support surface translation.
methodsSurface muscle activity of eleven leg and trunk muscles was analyzed to identify sets of four muscle modes (M-modes). Linear combination of M-modes and their relationship to changes in the COP shift in the anterior–posterior (AP) direction were then determined. Uncontrolled manifold (UCM) analysis was performed to determine variance components in the M-mode space and indices of M-mode synergy stabilizing the COP shift.
resultsPrior to the step initiation, synergies stabilizing COP were seen in both conditions. The synergy index started to drop before a change in the averaged activation levels across trials in postural muscles. The magnitude of synergy index was significantly larger under the perturbation condition.
conclusionsResults of the study have revealed that the central nervous system is able to prepare multi-muscle synergies when a step is performed during support surface translation. Prior to APAs, ASAs reduce stability of COPAP coordinate that is to be adjusted during the APAs. These findings may help get closer to understanding of physiological mechanism of postural preparation to external perturbation.
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