Passive arm-support and back-support exoskeletons have distinct phase-dependent effects on physical demands during cart pushing and pulling: An exploratory study

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dc.contributor.authorPark, Hanjunen
dc.contributor.authorNoll, Alexen
dc.contributor.authorKim, Sunwooken
dc.contributor.authorNussbaum, Maury A.en
dc.date.accessioned2025-04-15T14:29:24Zen
dc.date.available2025-04-15T14:29:24Zen
dc.date.issued2025-03-20en
dc.description.abstractArm-support exoskeletons (ASEs) and back-support exoskeletons (BSEs) can be effective in reducing physical demands during various occupational tasks, yet evidence of their effects in pushing and pulling tasks remains limited. We examined the effects of using a passive ASE and a BSE on task completion time, shoulder and trunk kinematics, and muscle activity in the shoulder and back while pushing and pulling a moderately loaded (100 kg) cart. Forty volunteers (24 M and 16 F) completed the study. Using the BSE substantially reduced thoracic and lumbar erector spinae muscle activity for males, especially during the initial and ending phases of pushing (by up to ∼31.4 %) and pulling (by up to ∼25.4 %) compared to the No Device (ND) condition. In contrast, using the ASE showed no significant benefits, with females experiencing an increase in anterior deltoid muscle activity (by up to ∼46.3 %) compared to ND. Findings from this study help to understand the effects of BSEs and ASEs in pushing and pulling tasks and support the development of more versatile exoskeletons.en
dc.description.versionAccepted versionen
dc.format.mimetypeapplication/pdfen
dc.identifier104510 (Article number)en
dc.identifier.doihttps://doi.org/10.1016/j.apergo.2025.104510en
dc.identifier.eissn1872-9126en
dc.identifier.issn0003-6870en
dc.identifier.orcidKim, Sun Wook [0000-0003-3624-1781]en
dc.identifier.orcidNussbaum, Maury [0000-0002-1887-8431]en
dc.identifier.otherS0003-6870(25)00046-8 (PII)en
dc.identifier.pmid40117782en
dc.identifier.urihttps://hdl.handle.net/10919/125194en
dc.identifier.volume126en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/40117782en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectBiomechanicsen
dc.subjectKinematicsen
dc.subjectMuscle activityen
dc.subjectVersatilityen
dc.titlePassive arm-support and back-support exoskeletons have distinct phase-dependent effects on physical demands during cart pushing and pulling: An exploratory studyen
dc.title.serialApplied Ergonomicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherJournal Articleen
dcterms.dateAccepted2025-03-13en
pubs.organisational-groupVirginia Techen
pubs.organisational-groupVirginia Tech/Engineeringen
pubs.organisational-groupVirginia Tech/Engineering/Industrial and Systems Engineeringen
pubs.organisational-groupVirginia Tech/Faculty of Health Sciencesen
pubs.organisational-groupVirginia Tech/All T&R Facultyen
pubs.organisational-groupVirginia Tech/Engineering/COE T&R Facultyen

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