Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation

Human-exoskeleton misalignment could lead to permanent damages upon the targeted limb with long-term use in rehabilitation. Hence, achieving proper alignment is necessary to ensure patient safety and an effective rehabilitative journey. In this study, a joint-based and task-based exoskeleton for upp...

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Main Authors: Clarissa Rincon, Pablo Delgado, Nils A. Hakansson, Yimesker Yihun
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Modelling
Subjects:
Online Access:https://www.mdpi.com/2673-3951/4/3/20
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author Clarissa Rincon
Pablo Delgado
Nils A. Hakansson
Yimesker Yihun
author_facet Clarissa Rincon
Pablo Delgado
Nils A. Hakansson
Yimesker Yihun
author_sort Clarissa Rincon
collection DOAJ
description Human-exoskeleton misalignment could lead to permanent damages upon the targeted limb with long-term use in rehabilitation. Hence, achieving proper alignment is necessary to ensure patient safety and an effective rehabilitative journey. In this study, a joint-based and task-based exoskeleton for upper limb rehabilitation were modeled and assessed. The assessment examined and quantified the misalignment present at the elbow joint as well as its effects on the main flexor and extensor muscles’ tendon length during elbow flexion-extension. The effects of the misalignments found for both exoskeletons resulted to be minimal in most muscles observed, except the anconeus and brachialis. The anconeus muscle demonstrated a relatively higher variation in tendon length with the joint-based exoskeleton misalignment, indicating that the task-based exoskeleton is favored for tasks that involve this particular muscle. Moreover, the brachialis demonstrated a significantly higher variation with the task-based exoskeleton misalignment, indicating that the joint-based exoskeleton is favored for tasks that involve the muscle.
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spelling doaj.art-a405fb95846e4eba83a33990d73410a92023-11-19T12:06:22ZengMDPI AGModelling2673-39512023-07-014335136510.3390/modelling4030020Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during RehabilitationClarissa Rincon0Pablo Delgado1Nils A. Hakansson2Yimesker Yihun3Department of Biomedical Engineering, Wichita State University, Wichita, KS 67260, USADepartment of Mechanical Engineering, Wichita State University, Wichita, KS 67260, USADepartment of Biomedical Engineering, Wichita State University, Wichita, KS 67260, USADepartment of Mechanical Engineering, Wichita State University, Wichita, KS 67260, USAHuman-exoskeleton misalignment could lead to permanent damages upon the targeted limb with long-term use in rehabilitation. Hence, achieving proper alignment is necessary to ensure patient safety and an effective rehabilitative journey. In this study, a joint-based and task-based exoskeleton for upper limb rehabilitation were modeled and assessed. The assessment examined and quantified the misalignment present at the elbow joint as well as its effects on the main flexor and extensor muscles’ tendon length during elbow flexion-extension. The effects of the misalignments found for both exoskeletons resulted to be minimal in most muscles observed, except the anconeus and brachialis. The anconeus muscle demonstrated a relatively higher variation in tendon length with the joint-based exoskeleton misalignment, indicating that the task-based exoskeleton is favored for tasks that involve this particular muscle. Moreover, the brachialis demonstrated a significantly higher variation with the task-based exoskeleton misalignment, indicating that the joint-based exoskeleton is favored for tasks that involve the muscle.https://www.mdpi.com/2673-3951/4/3/20rehabilitationexoskeletonalignmentOpenSimbiomechanical
spellingShingle Clarissa Rincon
Pablo Delgado
Nils A. Hakansson
Yimesker Yihun
Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
Modelling
rehabilitation
exoskeleton
alignment
OpenSim
biomechanical
title Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
title_full Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
title_fullStr Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
title_full_unstemmed Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
title_short Modeling of Human-Exoskeleton Alignment and Its Effect on the Elbow Flexor and Extensor Muscles during Rehabilitation
title_sort modeling of human exoskeleton alignment and its effect on the elbow flexor and extensor muscles during rehabilitation
topic rehabilitation
exoskeleton
alignment
OpenSim
biomechanical
url https://www.mdpi.com/2673-3951/4/3/20
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