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Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability

Response to challenging situations is important to avoid falls, especially after medial perturbations, which require active control. There is a lack of evidence on the relationship between the trunk’s motion in response to perturbations and gait stability. Eighteen healthy adults walked on a treadmi...

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Autores principales: Fallahtafti, Farahnaz, Bruijn, Sjoerd, Mohammadzadeh Gonabadi, Arash, Sangtarashan, Mohammad, Boron, Julie Blaskewicz, Curtze, Carolin, Siu, Ka-Chun, Myers, Sara A., Yentes, Jennifer
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007351/
https://www.ncbi.nlm.nih.gov/pubmed/36905037
http://dx.doi.org/10.3390/s23052833
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author Fallahtafti, Farahnaz
Bruijn, Sjoerd
Mohammadzadeh Gonabadi, Arash
Sangtarashan, Mohammad
Boron, Julie Blaskewicz
Curtze, Carolin
Siu, Ka-Chun
Myers, Sara A.
Yentes, Jennifer
author_facet Fallahtafti, Farahnaz
Bruijn, Sjoerd
Mohammadzadeh Gonabadi, Arash
Sangtarashan, Mohammad
Boron, Julie Blaskewicz
Curtze, Carolin
Siu, Ka-Chun
Myers, Sara A.
Yentes, Jennifer
author_sort Fallahtafti, Farahnaz
collection PubMed
description Response to challenging situations is important to avoid falls, especially after medial perturbations, which require active control. There is a lack of evidence on the relationship between the trunk’s motion in response to perturbations and gait stability. Eighteen healthy adults walked on a treadmill at three speeds while receiving perturbations of three magnitudes. Medial perturbations were applied by translating the walking platform to the right at left heel contact. Trunk velocity changes in response to the perturbation were calculated and divided into the initial and the recovery phases. Gait stability after a perturbation was assessed using the margin of stability (MOS) at the first heel contact, MOS mean, and standard deviation for the first five strides after the perturbation onset. Faster speed and smaller perturbations led to a lower deviation of trunk velocity from the steady state, which can be interpreted as an improvement in response to the perturbation. Recovery was quicker after small perturbations. The MOS mean was associated with the trunk’s motion in response to perturbations during the initial phase. Increasing walking speed may increase resistance to perturbations, while increasing the magnitude of perturbation leads to greater trunk motions. MOS is a useful marker of resistance to perturbations.
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spelling pubmed-100073512023-03-12 Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability Fallahtafti, Farahnaz Bruijn, Sjoerd Mohammadzadeh Gonabadi, Arash Sangtarashan, Mohammad Boron, Julie Blaskewicz Curtze, Carolin Siu, Ka-Chun Myers, Sara A. Yentes, Jennifer Sensors (Basel) Article Response to challenging situations is important to avoid falls, especially after medial perturbations, which require active control. There is a lack of evidence on the relationship between the trunk’s motion in response to perturbations and gait stability. Eighteen healthy adults walked on a treadmill at three speeds while receiving perturbations of three magnitudes. Medial perturbations were applied by translating the walking platform to the right at left heel contact. Trunk velocity changes in response to the perturbation were calculated and divided into the initial and the recovery phases. Gait stability after a perturbation was assessed using the margin of stability (MOS) at the first heel contact, MOS mean, and standard deviation for the first five strides after the perturbation onset. Faster speed and smaller perturbations led to a lower deviation of trunk velocity from the steady state, which can be interpreted as an improvement in response to the perturbation. Recovery was quicker after small perturbations. The MOS mean was associated with the trunk’s motion in response to perturbations during the initial phase. Increasing walking speed may increase resistance to perturbations, while increasing the magnitude of perturbation leads to greater trunk motions. MOS is a useful marker of resistance to perturbations. MDPI 2023-03-05 /pmc/articles/PMC10007351/ /pubmed/36905037 http://dx.doi.org/10.3390/s23052833 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fallahtafti, Farahnaz
Bruijn, Sjoerd
Mohammadzadeh Gonabadi, Arash
Sangtarashan, Mohammad
Boron, Julie Blaskewicz
Curtze, Carolin
Siu, Ka-Chun
Myers, Sara A.
Yentes, Jennifer
Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title_full Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title_fullStr Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title_full_unstemmed Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title_short Trunk Velocity Changes in Response to Physical Perturbations Are Potential Indicators of Gait Stability
title_sort trunk velocity changes in response to physical perturbations are potential indicators of gait stability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007351/
https://www.ncbi.nlm.nih.gov/pubmed/36905037
http://dx.doi.org/10.3390/s23052833
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