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dc.contributor.authorBauer, Christoph-
dc.contributor.authorRast, F.M.-
dc.contributor.authorBöck, C.-
dc.contributor.authorKuster, Roman-
dc.contributor.authorBaumgartner, Daniel-
dc.date.accessioned2018-11-01T09:21:49Z-
dc.date.available2018-11-01T09:21:49Z-
dc.date.issued2018-
dc.identifier.issn0003-6870de_CH
dc.identifier.issn1872-9126de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/12386-
dc.description.abstractObjective: This study investigated the location of the axis of rotation in sagittal plane movement of the spine in a free sitting condition to adjust the kinematics of a mobile seat for a dynamic chair. Background: Dynamic office chairs are designed to avoid continuous isometric muscle activity, and to facilitate increased mobility of the back during sitting. However, these chairs incorporate increased upper body movement which could distract office workers from the performance of their tasks. A chair with an axis of rotation above the seat would facilitate a stable upper back during movements of the lower back. The selection of a natural kinematic pattern is of high importance in order to match the properties of the spine. Method: Twenty-one participants performed four cycles of flexion and extension of the spine during an upper arm hang on parallel bars. The location of the axis of rotation relative to the seat was estimated using infrared cameras and reflective skin markers. Results: The median axis of rotation across all participants was located 36 cm above the seat for the complete movement and 39 cm for both the flexion and extension phases, each with an interquartile range of 20 cm. Conclusion: There was no significant effect of the movement direction on the location of the axis of rotation and only a weak, non-significant correlation between body height and the location of the axis of rotation. Individual movement patterns explained the majority of the variance. Application: The axis of rotation for a spinal flexion/extension movement is located above the seat. The recommended radius for a guide rail of a mobile seat is between 36 cm and 39 cm.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofApplied Ergonomicsde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectDynamic sittingde_CH
dc.subjectKinematicsde_CH
dc.subjectOffice workersde_CH
dc.subjectProduct designde_CH
dc.subjectSpinede_CH
dc.subject.ddc620: Ingenieurwesende_CH
dc.titleDetermination of a sagittal plane axis of rotation for a dynamic office chairde_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.doi10.1016/j.apergo.2018.05.008de_CH
dc.identifier.pmid29885721de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end112de_CH
zhaw.pages.start107de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume72de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Bauer, C., Rast, F. M., Böck, C., Kuster, R., & Baumgartner, D. (2018). Determination of a sagittal plane axis of rotation for a dynamic office chair. Applied Ergonomics, 72, 107–112. https://doi.org/10.1016/j.apergo.2018.05.008
Bauer, C. et al. (2018) ‘Determination of a sagittal plane axis of rotation for a dynamic office chair’, Applied Ergonomics, 72, pp. 107–112. Available at: https://doi.org/10.1016/j.apergo.2018.05.008.
C. Bauer, F. M. Rast, C. Böck, R. Kuster, and D. Baumgartner, “Determination of a sagittal plane axis of rotation for a dynamic office chair,” Applied Ergonomics, vol. 72, pp. 107–112, 2018, doi: 10.1016/j.apergo.2018.05.008.
BAUER, Christoph, F.M. RAST, C. BÖCK, Roman KUSTER und Daniel BAUMGARTNER, 2018. Determination of a sagittal plane axis of rotation for a dynamic office chair. Applied Ergonomics. 2018. Bd. 72, S. 107–112. DOI 10.1016/j.apergo.2018.05.008
Bauer, Christoph, F.M. Rast, C. Böck, Roman Kuster, and Daniel Baumgartner. 2018. “Determination of a Sagittal Plane Axis of Rotation for a Dynamic Office Chair.” Applied Ergonomics 72: 107–12. https://doi.org/10.1016/j.apergo.2018.05.008.
Bauer, Christoph, et al. “Determination of a Sagittal Plane Axis of Rotation for a Dynamic Office Chair.” Applied Ergonomics, vol. 72, 2018, pp. 107–12, https://doi.org/10.1016/j.apergo.2018.05.008.


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