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

Markus Nowak; I. Vujaklija; Claudio Castellini; Dario Farina

doi:10.1007/978-3-030-70316-5_60

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 proceeding › Chapter › Scientific › peer-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 language	English
Title of host publication	Converging Clinical and Engineering Research on Neurorehabilitation IV
Editors	Diego Torricelli, Metin Akay, Jose L. Pons
Pages	377-382
Number of pages	6
ISBN (Electronic)	9783030703165
DOIs	https://doi.org/10.1007/978-3-030-70316-5_60
Publication status	Published - 2022
MoE publication type	A3 Part of a book or another research book
Event	International Conference on NeuroRehabilitation - Virtual, Online Duration: 13 Oct 2020 → 16 Oct 2020 Conference number: 5

Publication series

Name	Biosystems and Biorobotics
Volume	28
ISSN (Print)	2195-3562
ISSN (Electronic)	2195-3570

Conference

Conference	International Conference on NeuroRehabilitation
Abbreviated title	ICNR
City	Virtual, Online
Period	13/10/2020 → 16/10/2020

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10.1007/978-3-030-70316-5_60

https://elib.dlr.de/144305/

Cite this

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title = "Highly Intuitive 3-DOF Simultaneous and Proportional Myocontrol of Wrist and Hand",

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).",

author = "Markus Nowak and I. Vujaklija and Claudio Castellini and Dario Farina",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.; International Conference on NeuroRehabilitation, ICNR ; Conference date: 13-10-2020 Through 16-10-2020",

year = "2022",

doi = "10.1007/978-3-030-70316-5_60",

language = "English",

isbn = "9783030703158",

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Nowak, M, Vujaklija, I, Castellini, C & Farina, D 2022, Highly Intuitive 3-DOF Simultaneous and Proportional Myocontrol of Wrist and Hand. in D Torricelli, M Akay & JL Pons (eds), Converging Clinical and Engineering Research on Neurorehabilitation IV. Biosystems and Biorobotics, vol. 28, pp. 377-382, International Conference on NeuroRehabilitation, Virtual, Online, 13/10/2020. https://doi.org/10.1007/978-3-030-70316-5_60

Highly Intuitive 3-DOF Simultaneous and Proportional Myocontrol of Wrist and Hand. / Nowak, Markus; Vujaklija, I.; Castellini, Claudio; Farina, Dario.

Converging Clinical and Engineering Research on Neurorehabilitation IV. ed. / Diego Torricelli; Metin Akay; Jose L. Pons. 2022. p. 377-382 (Biosystems and Biorobotics; Vol. 28).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Scientific › peer-review

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T1 - Highly Intuitive 3-DOF Simultaneous and Proportional Myocontrol of Wrist and Hand

AU - Nowak, Markus

AU - Vujaklija, I.

AU - Castellini, Claudio

AU - Farina, Dario

N1 - Conference code: 5

PY - 2022

Y1 - 2022

N2 - 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).

AB - 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).

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ER -

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

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