Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury

Objective. Chronic motor impairments of arms and hands as the consequence of a cervical spinal cord injury (SCI) have a tremendous impact on activities of daily life. A considerable number of people however retain minimal voluntary motor control in the paralyzed parts of the upper limbs that are mea...

Full description

Saved in:
Bibliographic Details
Main Authors: Wolf, Marvin (Author) , Rupp, Rüdiger (Author) , Schwarz, Andreas (Author)
Format: Article (Journal)
Language:English
Published: 15 April 2024
In: Journal of neural engineering
Year: 2024, Volume: 21, Issue: 2, Pages: [1], 1-19
ISSN:1741-2552
DOI:10.1088/1741-2552/ad331f
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1088/1741-2552/ad331f
Verlag, kostenfrei, Volltext: https://iopscience.iop.org/article/10.1088/1741-2552/ad331f
Get full text
Author Notes:Marvin Wolf, Rüdiger Rupp and Andreas Schwarz

MARC

LEADER 00000caa a2200000 c 4500
001 1892138476
003 DE-627
005 20241205144100.0
007 cr uuu---uuuuu
008 240625s2024 xx |||||o 00| ||eng c
024 7 |a 10.1088/1741-2552/ad331f  |2 doi 
035 |a (DE-627)1892138476 
035 |a (DE-599)KXP1892138476 
035 |a (OCoLC)1475300738 
040 |a DE-627  |b ger  |c DE-627  |e rda 
041 |a eng 
084 |a 33  |2 sdnb 
100 1 |a Wolf, Marvin  |e VerfasserIn  |0 (DE-588)133396272X  |0 (DE-627)1892139596  |4 aut 
245 1 0 |a Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury  |c Marvin Wolf, Rüdiger Rupp and Andreas Schwarz 
264 1 |c 15 April 2024 
300 |b Illustrationen 
300 |a 20 
336 |a Text  |b txt  |2 rdacontent 
337 |a Computermedien  |b c  |2 rdamedia 
338 |a Online-Ressource  |b cr  |2 rdacarrier 
500 |a Gesehen am 25.06.2024 
520 |a Objective. Chronic motor impairments of arms and hands as the consequence of a cervical spinal cord injury (SCI) have a tremendous impact on activities of daily life. A considerable number of people however retain minimal voluntary motor control in the paralyzed parts of the upper limbs that are measurable by electromyography (EMG) and inertial measurement units (IMUs). An integration into human-machine interfaces (HMIs) holds promise for reliable grasp intent detection and intuitive assistive device control. Approach. We used a multimodal HMI incorporating EMG and IMU data to decode reach-and-grasp movements of groups of persons with cervical SCI (n = 4) and without (control, n = 13). A post-hoc evaluation of control group data aimed to identify optimal parameters for online, co-adaptive closed-loop HMI sessions with persons with cervical SCI. We compared the performance of real-time, Random Forest-based movement versus rest (2 classes) and grasp type predictors (3 classes) with respect to their co-adaptation and evaluated the underlying feature importance maps. Main results. Our multimodal approach enabled grasp decoding significantly better than EMG or IMU data alone (p < 0.05). We found the 0.25 s directly prior to the first touch of an object to hold the most discriminative information. Our HMIs correctly predicted 79.3 +/- STD 7.4 (102.7 +/- STD 2.3 control group) out of 105 trials with grand average movement vs. rest prediction accuracies above 99.64% (100% sensitivity) and grasp prediction accuracies of 75.39 +/- STD 13.77% (97.66 +/- STD 5.48% control group). Co-adaption led to higher prediction accuracies with time, and we could identify adaptions in feature importances unique to each participant with cervical SCI. Significance. Our findings foster the development of multimodal and adaptive HMIs to allow persons with cervical SCI the intuitive control of assistive devices to improve personal independence. 
650 4 |a co-adaption 
650 4 |a electromyography (EMG) 
650 4 |a inertial measurement unit (IMU) 
650 4 |a MOVEMENTS 
650 4 |a multimodal human-machine interface (HMI) 
650 4 |a reach-and-grasp decoding 
650 4 |a RESTORATION 
650 4 |a spinal cord injury 
650 4 |a STIMULATION 
650 4 |a tetraplegia 
650 4 |a TETRAPLEGIA 
700 1 |a Rupp, Rüdiger  |d 1969-  |e VerfasserIn  |0 (DE-588)135739608  |0 (DE-627)570578388  |0 (DE-576)281757496  |4 aut 
700 1 |a Schwarz, Andreas  |e VerfasserIn  |0 (DE-588)1333963645  |0 (DE-627)1892140853  |4 aut 
773 0 8 |i Enthalten in  |t Journal of neural engineering  |d Bristol : Institute of Physics Publishing, 2004  |g 21(2024), 2 vom: Apr., Artikel-ID 026042, Seite [1], 1-19  |h Online-Ressource  |w (DE-627)37904711X  |w (DE-600)2135187-9  |w (DE-576)260530387  |x 1741-2552  |7 nnas  |a Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury 
773 1 8 |g volume:21  |g year:2024  |g number:2  |g month:04  |g elocationid:026042  |g pages:[1], 1-19  |g extent:20  |a Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury 
856 4 0 |u https://doi.org/10.1088/1741-2552/ad331f  |x Verlag  |x Resolving-System  |z kostenfrei  |3 Volltext 
856 4 0 |u https://iopscience.iop.org/article/10.1088/1741-2552/ad331f  |x Verlag  |z kostenfrei  |3 Volltext 
951 |a AR 
992 |a 20240625 
993 |a Article 
994 |a 2024 
998 |g 135739608  |a Rupp, Rüdiger  |m 135739608:Rupp, Rüdiger  |d 910000  |d 911460  |d 50000  |e 910000PR135739608  |e 911460PR135739608  |e 50000PR135739608  |k 0/910000/  |k 1/910000/911460/  |k 0/50000/  |p 2 
998 |g 133396272X  |a Wolf, Marvin  |m 133396272X:Wolf, Marvin  |p 1  |x j 
999 |a KXP-PPN1892138476  |e 4541484838 
BIB |a Y 
SER |a journal 
JSO |a {"title":[{"title_sort":"Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury","title":"Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injury"}],"recId":"1892138476","language":["eng"],"type":{"bibl":"article-journal","media":"Online-Ressource"},"name":{"displayForm":["Marvin Wolf, Rüdiger Rupp and Andreas Schwarz"]},"person":[{"family":"Wolf","roleDisplay":"VerfasserIn","display":"Wolf, Marvin","role":"aut","given":"Marvin"},{"roleDisplay":"VerfasserIn","family":"Rupp","role":"aut","display":"Rupp, Rüdiger","given":"Rüdiger"},{"given":"Andreas","role":"aut","display":"Schwarz, Andreas","roleDisplay":"VerfasserIn","family":"Schwarz"}],"note":["Gesehen am 25.06.2024"],"physDesc":[{"noteIll":"Illustrationen","extent":"20 S."}],"id":{"eki":["1892138476"],"doi":["10.1088/1741-2552/ad331f"]},"relHost":[{"recId":"37904711X","disp":"Decoding of unimanual and bimanual reach-and-grasp actions from EMG and IMU signals in persons with cervical spinal cord injuryJournal of neural engineering","title":[{"title_sort":"Journal of neural engineering","title":"Journal of neural engineering"}],"part":{"text":"21(2024), 2 vom: Apr., Artikel-ID 026042, Seite [1], 1-19","pages":"[1], 1-19","year":"2024","volume":"21","issue":"2","extent":"20"},"pubHistory":["1.2004 -"],"type":{"media":"Online-Ressource","bibl":"periodical"},"language":["eng"],"physDesc":[{"extent":"Online-Ressource"}],"note":["Gesehen am 21.10.2020","Fortsetzung der Druck-Ausgabe"],"origin":[{"publisherPlace":"Bristol","publisher":"Institute of Physics Publishing","dateIssuedKey":"2004","dateIssuedDisp":"2004-"}],"id":{"issn":["1741-2552"],"eki":["37904711X"],"zdb":["2135187-9"]}}],"origin":[{"dateIssuedDisp":"15 April 2024","dateIssuedKey":"2024"}]} 
SRT |a WOLFMARVINDECODINGOF1520