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Linking whole-body angular momentum and step placement during perturbed human walking
Human locomotion is remarkably robust to environmental disturbances. Previous studies have thoroughly investigated how perturbations influence body dynamics and what recovery strategies are used to regain balance. Fewer studies have attempted to establish formal links between balance and the recover...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Company of Biologists Ltd
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10112983/ https://www.ncbi.nlm.nih.gov/pubmed/36752161 http://dx.doi.org/10.1242/jeb.244760 |
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author | Leestma, Jennifer K. Golyski, Pawel R. Smith, Courtney R. Sawicki, Gregory S. Young, Aaron J. |
author_facet | Leestma, Jennifer K. Golyski, Pawel R. Smith, Courtney R. Sawicki, Gregory S. Young, Aaron J. |
author_sort | Leestma, Jennifer K. |
collection | PubMed |
description | Human locomotion is remarkably robust to environmental disturbances. Previous studies have thoroughly investigated how perturbations influence body dynamics and what recovery strategies are used to regain balance. Fewer studies have attempted to establish formal links between balance and the recovery strategies that are executed to regain stability. We hypothesized that there would be a strong relationship between the magnitude of imbalance and recovery strategy during perturbed walking. To test this hypothesis, we applied transient ground surface translations that varied in magnitude, direction and onset time while 11 healthy participants walked on a treadmill. We measured stability using integrated whole-body angular momentum (iWBAM) and recovery strategy using step placement. We found the strongest relationships between iWBAM and step placement in the frontal plane for earlier perturbation onset times in the perturbed step (R(2)=0.52, 0.50) and later perturbation onset times in the recovery step (R(2)=0.18, 0.25), while correlations were very weak in the sagittal plane (all R(2)≤0.13). These findings suggest that iWBAM influences step placement, particularly in the frontal plane, and that this influence is sensitive to perturbation onset time. Lastly, this investigation is accompanied by an open-source dataset to facilitate research on balance and recovery strategies in response to multifactorial ground surface perturbations, including 96 perturbation conditions spanning all combinations of three magnitudes, eight directions and four gait cycle onset times. |
format | Online Article Text |
id | pubmed-10112983 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Company of Biologists Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-101129832023-04-19 Linking whole-body angular momentum and step placement during perturbed human walking Leestma, Jennifer K. Golyski, Pawel R. Smith, Courtney R. Sawicki, Gregory S. Young, Aaron J. J Exp Biol Research Article Human locomotion is remarkably robust to environmental disturbances. Previous studies have thoroughly investigated how perturbations influence body dynamics and what recovery strategies are used to regain balance. Fewer studies have attempted to establish formal links between balance and the recovery strategies that are executed to regain stability. We hypothesized that there would be a strong relationship between the magnitude of imbalance and recovery strategy during perturbed walking. To test this hypothesis, we applied transient ground surface translations that varied in magnitude, direction and onset time while 11 healthy participants walked on a treadmill. We measured stability using integrated whole-body angular momentum (iWBAM) and recovery strategy using step placement. We found the strongest relationships between iWBAM and step placement in the frontal plane for earlier perturbation onset times in the perturbed step (R(2)=0.52, 0.50) and later perturbation onset times in the recovery step (R(2)=0.18, 0.25), while correlations were very weak in the sagittal plane (all R(2)≤0.13). These findings suggest that iWBAM influences step placement, particularly in the frontal plane, and that this influence is sensitive to perturbation onset time. Lastly, this investigation is accompanied by an open-source dataset to facilitate research on balance and recovery strategies in response to multifactorial ground surface perturbations, including 96 perturbation conditions spanning all combinations of three magnitudes, eight directions and four gait cycle onset times. The Company of Biologists Ltd 2023-03-29 /pmc/articles/PMC10112983/ /pubmed/36752161 http://dx.doi.org/10.1242/jeb.244760 Text en © 2023. Published by The Company of Biologists Ltd https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. |
spellingShingle | Research Article Leestma, Jennifer K. Golyski, Pawel R. Smith, Courtney R. Sawicki, Gregory S. Young, Aaron J. Linking whole-body angular momentum and step placement during perturbed human walking |
title | Linking whole-body angular momentum and step placement during perturbed human walking |
title_full | Linking whole-body angular momentum and step placement during perturbed human walking |
title_fullStr | Linking whole-body angular momentum and step placement during perturbed human walking |
title_full_unstemmed | Linking whole-body angular momentum and step placement during perturbed human walking |
title_short | Linking whole-body angular momentum and step placement during perturbed human walking |
title_sort | linking whole-body angular momentum and step placement during perturbed human walking |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10112983/ https://www.ncbi.nlm.nih.gov/pubmed/36752161 http://dx.doi.org/10.1242/jeb.244760 |
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