A pilot study investigating motor adaptations when learning to walk with a whole-body powered exoskeleton

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dc.contributor.authorPark, Hanjunen
dc.contributor.authorKim, Sunwooken
dc.contributor.authorNussbaum, Maury A.en
dc.contributor.authorSrinivasan, Divyaen
dc.date.accessioned2023-03-22T15:14:05Zen
dc.date.available2023-03-22T15:14:05Zen
dc.date.issued2023-04-01en
dc.date.updated2023-03-22T11:58:27Zen
dc.description.abstractEvidence is emerging on how whole-body powered exoskeleton (EXO) use impacts users in basic occupational work scenarios, yet our understanding of how users learn to use this complex technology is limited. We explored how novice users adapted to using an EXO during gait. Six novices and five experienced users completed the study. Novices completed an initial training/familiarization gait session, followed by three subsequent gait sessions using the EXO, while experienced users completed one gait session with the EXO. Spatiotemporal gait measures, pelvis and lower limb joint kinematics, muscle activities, EXO torques, and human-EXO interaction forces were measured. Adaptations among novices were most pronounced in spatiotemporal gait measures, followed by joint kinematics, with smaller changes evident in muscle activity and EXO joint torques. Compared to the experienced users, novices exhibited a shorter step length and walked with significantly greater anterior pelvic tilt and less hip extension. Novices also used lower joint torques from the EXO at the hip and knee, and they had greater biceps femoris activity. Overall, our results may suggest that novices exhibited clear progress in learning, but they had not yet adopted motor strategies similar to those of experienced users after the three sessions. We suggest potential future directions to enhance motor adaptations to powered EXO in terms of both training protocols and human-EXO interfaces.en
dc.description.versionAccepted versionen
dc.format.mimetypeapplication/pdfen
dc.identifier102755 (Article number)en
dc.identifier.doihttps://doi.org/10.1016/j.jelekin.2023.102755en
dc.identifier.eissn1873-5711en
dc.identifier.issn1050-6411en
dc.identifier.orcidNussbaum, Maury [0000-0002-1887-8431]en
dc.identifier.otherS1050-6411(23)00014-7 (PII)en
dc.identifier.pmid36921425en
dc.identifier.urihttp://hdl.handle.net/10919/114145en
dc.identifier.volume69en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/36921425en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectEMGen
dc.subjectGait performanceen
dc.subjectHuman-robot interactionen
dc.subjectMotor learningen
dc.subjectRehabilitationen
dc.subjectPhysical rehabilitationen
dc.subjectClinical researchen
dc.subjectMusculoskeletalen
dc.titleA pilot study investigating motor adaptations when learning to walk with a whole-body powered exoskeletonen
dc.title.serialJournal of Electromyography and Kinesiologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherJournal Articleen
dcterms.dateAccepted2023-03-03en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Industrial and Systems Engineeringen
pubs.organisational-group/Virginia Tech/Faculty of Health Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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