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sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis

We propose, implement, and evaluate a natural human-machine control interface for a variable stiffness transradial hand prosthesis that achieves tele-impedance control through surface electromyography (sEMG) signals. This interface, together with variable stiffness actuation (VSA), enables an ampute...

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Detalles Bibliográficos
Autores principales: Hocaoglu, Elif, Patoglu, Volkan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8963738/
https://www.ncbi.nlm.nih.gov/pubmed/35360833
http://dx.doi.org/10.3389/fnbot.2022.789341
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author Hocaoglu, Elif
Patoglu, Volkan
author_facet Hocaoglu, Elif
Patoglu, Volkan
author_sort Hocaoglu, Elif
collection PubMed
description We propose, implement, and evaluate a natural human-machine control interface for a variable stiffness transradial hand prosthesis that achieves tele-impedance control through surface electromyography (sEMG) signals. This interface, together with variable stiffness actuation (VSA), enables an amputee to modulate the impedance of the prosthetic limb to properly match the requirements of a task while performing activities of daily living (ADL). Both the desired position and stiffness references are estimated through sEMG signals and used to control the VSA hand prosthesis. In particular, regulation of hand impedance is managed through the impedance measurements of the intact upper arm; this control takes place naturally and automatically as the amputee interacts with the environment, while the position of the hand prosthesis is regulated intentionally by the amputee through the estimated position of the shoulder. The proposed approach is advantageous since the impedance regulation takes place naturally without requiring amputees' attention and diminishing their functional capability. Consequently, the proposed interface is easy to use, does not require long training periods or interferes with the control of intact body segments. This control approach is evaluated through human subject experiments conducted over able volunteers where adequate estimation of references and independent control of position and stiffness are demonstrated.
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spelling pubmed-89637382022-03-30 sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis Hocaoglu, Elif Patoglu, Volkan Front Neurorobot Neuroscience We propose, implement, and evaluate a natural human-machine control interface for a variable stiffness transradial hand prosthesis that achieves tele-impedance control through surface electromyography (sEMG) signals. This interface, together with variable stiffness actuation (VSA), enables an amputee to modulate the impedance of the prosthetic limb to properly match the requirements of a task while performing activities of daily living (ADL). Both the desired position and stiffness references are estimated through sEMG signals and used to control the VSA hand prosthesis. In particular, regulation of hand impedance is managed through the impedance measurements of the intact upper arm; this control takes place naturally and automatically as the amputee interacts with the environment, while the position of the hand prosthesis is regulated intentionally by the amputee through the estimated position of the shoulder. The proposed approach is advantageous since the impedance regulation takes place naturally without requiring amputees' attention and diminishing their functional capability. Consequently, the proposed interface is easy to use, does not require long training periods or interferes with the control of intact body segments. This control approach is evaluated through human subject experiments conducted over able volunteers where adequate estimation of references and independent control of position and stiffness are demonstrated. Frontiers Media S.A. 2022-03-11 /pmc/articles/PMC8963738/ /pubmed/35360833 http://dx.doi.org/10.3389/fnbot.2022.789341 Text en Copyright © 2022 Hocaoglu and Patoglu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Hocaoglu, Elif
Patoglu, Volkan
sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title_full sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title_fullStr sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title_full_unstemmed sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title_short sEMG-Based Natural Control Interface for a Variable Stiffness Transradial Hand Prosthesis
title_sort semg-based natural control interface for a variable stiffness transradial hand prosthesis
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8963738/
https://www.ncbi.nlm.nih.gov/pubmed/35360833
http://dx.doi.org/10.3389/fnbot.2022.789341
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