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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-21822
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dc.contributor.authorKuster, Roman Peter-
dc.contributor.authorBauer, Christoph Michael-
dc.contributor.authorBaumgartner, Daniel-
dc.date.accessioned2021-02-18T15:15:30Z-
dc.date.available2021-02-18T15:15:30Z-
dc.date.issued2020-
dc.identifier.issn1932-6203de_CH
dc.identifier.issn1932-6203de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/21822-
dc.description.abstractToday's office chairs are not known to promote active sitting or to activate the lumbar trunk muscles, both of which functions are ergonomically recommended. This study investigated a newly developed dynamic office chair with a moveable seat, specifically designed to promote trunk muscle controlled active sitting. The study aimed to determine the means by which the seat movement was controlled during active sitting. This was accomplished by quantifying trunk and thigh muscular activity and body kinematics. Additionally, the effect of increased spinal motion on muscular activity and body kinematics was analysed. Ten subjects were equipped with reflective body markers and surface electromyography on three lumbar back muscles (multifidus, iliocostalis, longissimus) and two thigh muscles (vastus lateralis and medialis). Subjects performed a reading task during static and active sitting in spontaneous and maximum ranges of motion in a simulated office laboratory setting. The temporal muscle activation pattern, average muscle activity and body segment kinematics were analysed and compared using Friedman and post-hoc Wilcoxon tests (p≤0.05). Active sitting on the new chair significantly affected the lumbar trunk muscles, with characteristic cyclic unloading/loading in response to the seat movement. Neither thigh muscle activity nor lateral body weight shift were substantially affected by active sitting. When participants increased their range of motion, the lumbar back muscles were activated for longer and relaxation times were shorter. The characteristic activity pattern of the lumbar trunk muscles was shown to be the most likely dominant factor in controlling seat movement during active sitting. Consequently, the new chair may have a potential positive impact on back health during prolonged sitting. Further studies are necessary to analyse the frequency and intensity of active sitting during daily office work.de_CH
dc.language.isoende_CH
dc.publisherPublic Library of Science de_CH
dc.relation.ispartofPLOS ONEde_CH
dc.rightshttp://creativecommons.org/licenses/by/4.0/de_CH
dc.subjectAdultde_CH
dc.subjectBack Musclesde_CH
dc.subjectBiomechanical Phenomenade_CH
dc.subjectElectromyographyde_CH
dc.subjectFemalede_CH
dc.subjectHumansde_CH
dc.subjectInterior Design and Furnishingsde_CH
dc.subjectLow Back Painde_CH
dc.subjectLumbosacral Regionde_CH
dc.subjectMalede_CH
dc.subjectMiddle Agedde_CH
dc.subjectPosturede_CH
dc.subjectRange of Motion, Articularde_CH
dc.subjectSpinede_CH
dc.subjectYoung Adultde_CH
dc.subjectErgonomicsde_CH
dc.subjectSitting Positionde_CH
dc.subject.ddc620: Ingenieurwesende_CH
dc.titleIs active sitting on a dynamic office chair controlled by the trunk muscles?de_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementGesundheitde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitut für Mechanische Systeme (IMES)de_CH
zhaw.organisationalunitInstitut für Physiotherapie (IPT)de_CH
dc.identifier.doi10.1371/journal.pone.0242854de_CH
dc.identifier.doi10.21256/zhaw-21822-
dc.identifier.pmid33253292de_CH
zhaw.funding.euNode_CH
zhaw.issue11de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume15de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedAngewandte Gerontologiede_CH
zhaw.funding.zhawT-CHAIRde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
zhaw.monitoring.costperiod2021de_CH
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Kuster, R. P., Bauer, C. M., & Baumgartner, D. (2020). Is active sitting on a dynamic office chair controlled by the trunk muscles? Plos One, 15(11). https://doi.org/10.1371/journal.pone.0242854
Kuster, R.P., Bauer, C.M. and Baumgartner, D. (2020) ‘Is active sitting on a dynamic office chair controlled by the trunk muscles?’, PLOS ONE, 15(11). Available at: https://doi.org/10.1371/journal.pone.0242854.
R. P. Kuster, C. M. Bauer, and D. Baumgartner, “Is active sitting on a dynamic office chair controlled by the trunk muscles?,” PLOS ONE, vol. 15, no. 11, 2020, doi: 10.1371/journal.pone.0242854.
KUSTER, Roman Peter, Christoph Michael BAUER und Daniel BAUMGARTNER, 2020. Is active sitting on a dynamic office chair controlled by the trunk muscles? PLOS ONE. 2020. Bd. 15, Nr. 11. DOI 10.1371/journal.pone.0242854
Kuster, Roman Peter, Christoph Michael Bauer, and Daniel Baumgartner. 2020. “Is Active Sitting on a Dynamic Office Chair Controlled by the Trunk Muscles?” Plos One 15 (11). https://doi.org/10.1371/journal.pone.0242854.
Kuster, Roman Peter, et al. “Is Active Sitting on a Dynamic Office Chair Controlled by the Trunk Muscles?” Plos One, vol. 15, no. 11, 2020, https://doi.org/10.1371/journal.pone.0242854.


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