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Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait
An FDA-approved soft wearable robot, the Myosuit, which was designed to provide hip and knee extension torque has recently been commercialized. While studies have reported reductions in metabolic costs, increased gait speeds, and improvements in clinical test scores, a comprehensive analysis of elec...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9413953/ https://www.ncbi.nlm.nih.gov/pubmed/36015888 http://dx.doi.org/10.3390/s22166127 |
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author | Kim, Jaewook Kim, Yekwang Kang, Seonghyun Kim, Seung-Jong |
author_facet | Kim, Jaewook Kim, Yekwang Kang, Seonghyun Kim, Seung-Jong |
author_sort | Kim, Jaewook |
collection | PubMed |
description | An FDA-approved soft wearable robot, the Myosuit, which was designed to provide hip and knee extension torque has recently been commercialized. While studies have reported reductions in metabolic costs, increased gait speeds, and improvements in clinical test scores, a comprehensive analysis of electromyography (EMG) signals and joint kinematics is warranted because the recruitment of appropriate muscle groups during physiological movement patterns facilitates effective motor learning. Here, we compared the lower limb joint kinematics and EMG patterns while wearing the Myosuit with that of unassisted conditions when performing level overground and incline treadmill gait. The level overground gait sessions (seven healthy subjects) were performed at self-selected speeds and the incline treadmill gait sessions (four healthy subjects) were performed at 2, 3, 4, and 5 km/h. In order to evaluate how the user is assisted, we conducted a biomechanical analysis according to the three major gait tasks: weight acceptance (WA), single-limb support, and limb advancement. The results from the gait sessions suggest that Myosuit not only well preserves the users’ natural patterns, but more importantly reduce knee extensor demand during the WA phase for both level and incline gait. |
format | Online Article Text |
id | pubmed-9413953 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94139532022-08-27 Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait Kim, Jaewook Kim, Yekwang Kang, Seonghyun Kim, Seung-Jong Sensors (Basel) Article An FDA-approved soft wearable robot, the Myosuit, which was designed to provide hip and knee extension torque has recently been commercialized. While studies have reported reductions in metabolic costs, increased gait speeds, and improvements in clinical test scores, a comprehensive analysis of electromyography (EMG) signals and joint kinematics is warranted because the recruitment of appropriate muscle groups during physiological movement patterns facilitates effective motor learning. Here, we compared the lower limb joint kinematics and EMG patterns while wearing the Myosuit with that of unassisted conditions when performing level overground and incline treadmill gait. The level overground gait sessions (seven healthy subjects) were performed at self-selected speeds and the incline treadmill gait sessions (four healthy subjects) were performed at 2, 3, 4, and 5 km/h. In order to evaluate how the user is assisted, we conducted a biomechanical analysis according to the three major gait tasks: weight acceptance (WA), single-limb support, and limb advancement. The results from the gait sessions suggest that Myosuit not only well preserves the users’ natural patterns, but more importantly reduce knee extensor demand during the WA phase for both level and incline gait. MDPI 2022-08-16 /pmc/articles/PMC9413953/ /pubmed/36015888 http://dx.doi.org/10.3390/s22166127 Text en © 2022 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 Kim, Jaewook Kim, Yekwang Kang, Seonghyun Kim, Seung-Jong Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title | Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title_full | Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title_fullStr | Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title_full_unstemmed | Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title_short | Biomechanical Analysis Suggests Myosuit Reduces Knee Extensor Demand during Level and Incline Gait |
title_sort | biomechanical analysis suggests myosuit reduces knee extensor demand during level and incline gait |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9413953/ https://www.ncbi.nlm.nih.gov/pubmed/36015888 http://dx.doi.org/10.3390/s22166127 |
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