Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study

A variety of robotic exoskeletons have been developed for patients with spinal cord injuries. However, the optimal training method and period for using a robotic exoskeleton have been uncertain until now. The purpose of this study is to determine the minimum training period for using a robotic exosk...

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Main Authors: Sung-Hyeon Kim, Ho-Jin Shin, Hwi-Young Cho
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Healthcare
Subjects:
Online Access:https://www.mdpi.com/2227-9032/9/8/1003
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spelling doaj-fa74e326284f461a92039b809f22b5d62021-08-26T13:47:47ZengMDPI AGHealthcare2227-90322021-08-0191003100310.3390/healthcare9081003Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures StudySung-Hyeon Kim0Ho-Jin Shin1Hwi-Young Cho2Department of Health Science, Gachon University Graduate School, Incheon 21936, KoreaDepartment of Health Science, Gachon University Graduate School, Incheon 21936, KoreaDepartment of Health Science, Gachon University Graduate School, Incheon 21936, KoreaA variety of robotic exoskeletons have been developed for patients with spinal cord injuries. However, the optimal training method and period for using a robotic exoskeleton have been uncertain until now. The purpose of this study is to determine the minimum training period for using a robotic exoskeleton with minimal muscle activity by investigating the changes in muscle activity and muscle characteristics of healthy adults during robotic exoskeleton training. A total of 16 people participated in the study. The robotic exoskeleton locomotion training consisted of three 50-min sessions a week for 7 weeks. The assessment consisted of sitting, standing, wide standing, sit-to-stand, and stand-to-sit where muscle activity and muscle characteristics were measured during each motion. All measurements were performed in the first session and every five sessions. Participants showed decreased muscle activity up to 10 sessions of training in the standing position, and 15 sessions in sit-to-stand and stand-to-sit motions. Upper extremity muscles showed decreased muscle activity, tone, stiffness, and logarithmic decrement up to the 15th session. The study results show that at least 15 training sessions are required to use the robotic exoskeleton with minimal load on the musculoskeletal system, and longer training is required for patients with spinal cord injury.https://www.mdpi.com/2227-9032/9/8/1003exoskeleton deviceroboticsphysical functional performancelocomotionorthosis
collection DOAJ
language English
format Article
sources DOAJ
author Sung-Hyeon Kim
Ho-Jin Shin
Hwi-Young Cho
spellingShingle Sung-Hyeon Kim
Ho-Jin Shin
Hwi-Young Cho
Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
Healthcare
exoskeleton device
robotics
physical functional performance
locomotion
orthosis
author_facet Sung-Hyeon Kim
Ho-Jin Shin
Hwi-Young Cho
author_sort Sung-Hyeon Kim
title Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
title_short Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
title_full Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
title_fullStr Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
title_full_unstemmed Preliminary Assessment of Muscle Activity and Muscle Characteristics during Training with Powered Robotic Exoskeleton: A Repeated-Measures Study
title_sort preliminary assessment of muscle activity and muscle characteristics during training with powered robotic exoskeleton: a repeated-measures study
publisher MDPI AG
series Healthcare
issn 2227-9032
publishDate 2021-08-01
description A variety of robotic exoskeletons have been developed for patients with spinal cord injuries. However, the optimal training method and period for using a robotic exoskeleton have been uncertain until now. The purpose of this study is to determine the minimum training period for using a robotic exoskeleton with minimal muscle activity by investigating the changes in muscle activity and muscle characteristics of healthy adults during robotic exoskeleton training. A total of 16 people participated in the study. The robotic exoskeleton locomotion training consisted of three 50-min sessions a week for 7 weeks. The assessment consisted of sitting, standing, wide standing, sit-to-stand, and stand-to-sit where muscle activity and muscle characteristics were measured during each motion. All measurements were performed in the first session and every five sessions. Participants showed decreased muscle activity up to 10 sessions of training in the standing position, and 15 sessions in sit-to-stand and stand-to-sit motions. Upper extremity muscles showed decreased muscle activity, tone, stiffness, and logarithmic decrement up to the 15th session. The study results show that at least 15 training sessions are required to use the robotic exoskeleton with minimal load on the musculoskeletal system, and longer training is required for patients with spinal cord injury.
topic exoskeleton device
robotics
physical functional performance
locomotion
orthosis
url https://www.mdpi.com/2227-9032/9/8/1003
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AT hwiyoungcho preliminaryassessmentofmuscleactivityandmusclecharacteristicsduringtrainingwithpoweredroboticexoskeletonarepeatedmeasuresstudy
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