The Development of an Innovative Occupational Passive Upper Extremity Exoskeleton and an Investigation of Its Effects on Muscles

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dc.authorid0000-0003-3350-1509
dc.authorid0000-0002-0637-3487
dc.contributor.authorOcal, Ahmet Emre
dc.contributor.authorLekesiz, Huseyin
dc.contributor.authorCetin, Sevda Telli
dc.date.accessioned2026-02-12T21:05:10Z
dc.date.available2026-02-12T21:05:10Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractWork-related musculoskeletal disorders are one of the main problems reducing the life quality of workers. Occupational exoskeletons are one of the most promising solutions for solving this issue. In this study, an innovative and passive upper-extremity exoskeleton design was presented and tested by measuring ten different muscle activities for two tasks: Task 1, for over-the-head tool handling, and Task 2, for completely stretched forearm tool handling. The special optimized switch mechanism design allowed for free motion when it was not active, which provided design advantages in comparison to the currently available designs. The muscle activity levels were measured via EMG for both tasks and the results were compared and evaluated with and without the exoskeleton on the human body. It was shown that the muscle activity for Task 1 was reduced by 55% for the middle deltoid, 37% for the posterior deltoid, and 27% for the anterior deltoid muscles, in comparison to no exoskeleton for Task 1. For Task 2, the muscle activity was reduced by 48% for the middle deltoid, 20% for the posterior deltoid, and 38% for the anterior deltoid. The exoskeleton presented in this study is an efficient design that significantly increases shoulder comfort, especially in working conditions, without bringing an additional metabolic cost for the secondary muscles.
dc.description.sponsorshipTUBITAK (The Scientific and Technological Research Council of Turkey) [2200035]
dc.description.sponsorshipThis research was funded by TUBITAK (The Scientific and Technological Research Council of Turkey) under 1512 programme, grant number 2200035.
dc.identifier.doi10.3390/app13116763
dc.identifier.issn2076-3417
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85161520614
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/app13116763
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6832
dc.identifier.volume13
dc.identifier.wosWOS:001004972200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofApplied Sciences-Basel
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260212
dc.subjectexoskeleton
dc.subjectupper limb
dc.subjectbiomechanics
dc.subjectmuscle forces
dc.subjectmechanism
dc.subjectmusculoskeletal disorder
dc.subjectEMG
dc.subjectrepetitive task
dc.subjectmuscle fatigue
dc.titleThe Development of an Innovative Occupational Passive Upper Extremity Exoskeleton and an Investigation of Its Effects on Muscles
dc.typeArticle

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