Article
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Objective and Subjective Evaluation of a Passive Exoskeleton for Upper Limbs
Version 1
: Received: 19 November 2021 / Approved: 26 November 2021 / Online: 26 November 2021 (18:09:02 CET)
How to cite: Le Tellier, B.; Albouy, T.; Lebel, K. Objective and Subjective Evaluation of a Passive Exoskeleton for Upper Limbs. Preprints 2021, 2021110512. https://doi.org/10.20944/preprints202111.0512.v1 Le Tellier, B.; Albouy, T.; Lebel, K. Objective and Subjective Evaluation of a Passive Exoskeleton for Upper Limbs. Preprints 2021, 2021110512. https://doi.org/10.20944/preprints202111.0512.v1
Abstract
The aim of this study was to evaluate the Hapo ms, a passive upper limbs exoskeleton developed to assist workers for tasks with arms in front of the body. Twelve participants had to perform a static task, a manual handling task and a load carrying task two times: with and without the exoskeleton. In all cases subjective (perceived effort in arm and back areas, comfort) and objective (muscular activity, postural balance) criteria were evaluated. Results have shown a decrease in anterior deltoid (-12 to -18% depending of the task) and in biceps brachii (-19% to -33% depending of the task) muscular activity. No significant difference was pointed out in back muscle and postural balance was not significantly perturbed due to the wear of the exoskeleton. Finally, perceived effort reduction was observed during the three tasks (except in back area for task 1). To conclude, the Hapo ms seems well adapted to assist upper arms during tasks with arms in front of the body.
Keywords
MSDs; exoskeleton; upper limb assistance; EMG; balance test; subjective questionnaire
Subject
Medicine and Pharmacology, Medicine and Pharmacology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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