Highly Intuitive 3-DOF Simultaneous and Proportional Myocontrol of Wrist and Hand

Markus Nowak*, I. Vujaklija, Claudio Castellini, Dario Farina

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Abstract

While simultaneous and proportional activation of multiple degrees of freedom (DOFs) is supported by novel prosthetic hands, there are still no commercial controllers to appropriately enable it. Here, we test a ridge regression based myocontrol method in two real-time scenarios: 13 subjects with an extended high-density EMG electrode set (192 channels) and 4 subjects with a reduced set of electrodes (16 channels). In each scenario, the algorithm was trained on 3 repetitions of single DOF motions (rest, wrist flexion/extension and rotation, and hand closing) and then subjects were asked to reach 24 on-screen goals consisting of one-DOF, two-DOF, and three-DOF targets. The results showed that participants were able to reach all types of targets and that their one-DOF success rate remained high despite the simultaneous control of multiple DoFs (95.9 ± 5.7 %). Moreover, the performance did not significantly change when reducing the number of electrodes (97.6 ± 4.5 % for 16 channels).

Original languageEnglish
Title of host publicationConverging Clinical and Engineering Research on Neurorehabilitation IV
EditorsDiego Torricelli, Metin Akay, Jose L. Pons
Pages377-382
Number of pages6
ISBN (Electronic)9783030703165
DOIs
Publication statusPublished - 2022
MoE publication typeA3 Part of a book or another research book
EventInternational Conference on NeuroRehabilitation - Virtual, Online
Duration: 13 Oct 202016 Oct 2020
Conference number: 5

Publication series

NameBiosystems and Biorobotics
Volume28
ISSN (Print)2195-3562
ISSN (Electronic)2195-3570

Conference

ConferenceInternational Conference on NeuroRehabilitation
Abbreviated titleICNR
CityVirtual, Online
Period13/10/202016/10/2020

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