Application of EMG feedback for hand prosthesis control in high-level amputation: a case study

Abstract EMG feedback improves force control of a myoelectric hand prosthesis by conveying the magnitude of the myoelectric signal back to the users via tactile stimulation. The present study aimed to test if this method can be used by a participant with a high-level amputation, and whose muscle use...

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Main Authors: Jack Tchimino, Rehne Lessmann Hansen, Peter Holmberg Jørgensen, Jakob Dideriksen, Strahinja Dosen
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-80828-x
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author Jack Tchimino
Rehne Lessmann Hansen
Peter Holmberg Jørgensen
Jakob Dideriksen
Strahinja Dosen
author_facet Jack Tchimino
Rehne Lessmann Hansen
Peter Holmberg Jørgensen
Jakob Dideriksen
Strahinja Dosen
author_sort Jack Tchimino
collection DOAJ
description Abstract EMG feedback improves force control of a myoelectric hand prosthesis by conveying the magnitude of the myoelectric signal back to the users via tactile stimulation. The present study aimed to test if this method can be used by a participant with a high-level amputation, and whose muscle used for prosthesis control (pectoralis major) was not intuitively related to hand function. Vibrotactile feedback was delivered to the participant’s torso, while the control was tested using EMG from three different muscles. The participant completed four experimental sessions of a force-matching task with a prosthesis. The performance was evaluated by computing the target force success rate. The results of session 1 showed that the participant could effectively employ EMG feedback after only brief training. Session 2 demonstrated that EMG feedback benefited force control, increasing the success rate by approx. 30%. Finally, after proper training (sessions 3 and 4), the participant’s performance when using the muscle on the amputated side was similar to that achieved with the muscles on the contralateral side. Overall, the study results indicate that EMG feedback can be used in high-level amputations, despite the extent of the injury and non-intuitive control.
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language English
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spelling doaj-art-111c58a82e314e969e0baf6028b407db2025-01-05T12:29:01ZengNature PortfolioScientific Reports2045-23222024-12-0114111410.1038/s41598-024-80828-xApplication of EMG feedback for hand prosthesis control in high-level amputation: a case studyJack Tchimino0Rehne Lessmann Hansen1Peter Holmberg Jørgensen2Jakob Dideriksen3Strahinja Dosen4Department of Health Science and Technology, Aalborg UniversityOrthopedic Surgery Department, Aarhus University HospitalOrthopedic Surgery Department, Aarhus University HospitalDepartment of Health Science and Technology, Aalborg UniversityDepartment of Health Science and Technology, Aalborg UniversityAbstract EMG feedback improves force control of a myoelectric hand prosthesis by conveying the magnitude of the myoelectric signal back to the users via tactile stimulation. The present study aimed to test if this method can be used by a participant with a high-level amputation, and whose muscle used for prosthesis control (pectoralis major) was not intuitively related to hand function. Vibrotactile feedback was delivered to the participant’s torso, while the control was tested using EMG from three different muscles. The participant completed four experimental sessions of a force-matching task with a prosthesis. The performance was evaluated by computing the target force success rate. The results of session 1 showed that the participant could effectively employ EMG feedback after only brief training. Session 2 demonstrated that EMG feedback benefited force control, increasing the success rate by approx. 30%. Finally, after proper training (sessions 3 and 4), the participant’s performance when using the muscle on the amputated side was similar to that achieved with the muscles on the contralateral side. Overall, the study results indicate that EMG feedback can be used in high-level amputations, despite the extent of the injury and non-intuitive control.https://doi.org/10.1038/s41598-024-80828-xEMG feedbackHigh-level amputationForce controlMyoelectric prosthesisOsseointegration
spellingShingle Jack Tchimino
Rehne Lessmann Hansen
Peter Holmberg Jørgensen
Jakob Dideriksen
Strahinja Dosen
Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
Scientific Reports
EMG feedback
High-level amputation
Force control
Myoelectric prosthesis
Osseointegration
title Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
title_full Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
title_fullStr Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
title_full_unstemmed Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
title_short Application of EMG feedback for hand prosthesis control in high-level amputation: a case study
title_sort application of emg feedback for hand prosthesis control in high level amputation a case study
topic EMG feedback
High-level amputation
Force control
Myoelectric prosthesis
Osseointegration
url https://doi.org/10.1038/s41598-024-80828-x
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