Wrist speed feedback improves elbow compensation and reaching accuracy for myoelectric transradial prosthesis users in hybrid virtual reaching task.

Autor: Earley EJ; Center for Bionic Medicine, Shirley Ryan AbilityLab, Chicago, IL, USA. ericearley@u.northwestern.edu.; Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA. ericearley@u.northwestern.edu.; Center for Bionics and Pain Research, Mölndal, Sweden. ericearley@u.northwestern.edu.; Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden. ericearley@u.northwestern.edu., Johnson RE; Department of Mechanical Engineering and Bioengineering, Valparaiso University, Valparaiso, IN, USA., Sensinger JW; Institute of Biomedical Engineering, University of New Brunswick, Fredericton, NB, Canada.; Department of Electrical and Computer Engineering, University of New Brunswick, Fredericton, NB, Canada., Hargrove LJ; Center for Bionic Medicine, Shirley Ryan AbilityLab, Chicago, IL, USA.; Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA.; Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, USA.
Jazyk: angličtina
Zdroj: Journal of neuroengineering and rehabilitation [J Neuroeng Rehabil] 2023 Jan 19; Vol. 20 (1), pp. 9. Date of Electronic Publication: 2023 Jan 19.
DOI: 10.1186/s12984-023-01138-3
Abstrakt: Background: Myoelectric prostheses are a popular choice for restoring motor capability following the loss of a limb, but they do not provide direct feedback to the user about the movements of the device-in other words, kinesthesia. The outcomes of studies providing artificial sensory feedback are often influenced by the availability of incidental feedback. When subjects are blindfolded and disconnected from the prosthesis, artificial sensory feedback consistently improves control; however, when subjects wear a prosthesis and can see the task, benefits often deteriorate or become inconsistent. We theorize that providing artificial sensory feedback about prosthesis speed, which cannot be precisely estimated via vision, will improve the learning and control of a myoelectric prosthesis.
Methods: In this study, we test a joint-speed feedback system with six transradial amputee subjects to evaluate how it affects myoelectric control and adaptation behavior during a virtual reaching task.
Results: Our results showed that joint-speed feedback lowered reaching errors and compensatory movements during steady-state reaches. However, the same feedback provided no improvement when control was perturbed.
Conclusions: These outcomes suggest that the benefit of joint speed feedback may be dependent on the complexity of the myoelectric control and the context of the task.
(© 2023. The Author(s).)
Databáze: MEDLINE
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