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Variation in upper extremity, neck and trunk postures when performing computer work at a sit-stand station
Department of Physical Therapy, Federal University of São Carlos.
Department of Industrial and Systems Engineering, Virginia Polytechnic Institute and State University.ORCID iD: 0000-0001-9327-6177
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-1443-6211
Department of Physical Therapy, Federal University of São Carlos.
2019 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 75, p. 120-128Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to determine the extent of upper arm, neck and trunk posture variation that can be obtained by combining seated and standing computer work, compared to performing only seated computer work. Posture data were recorded for two hours during each of three days of ordinary work from 24 office workers that had been using a sit-stand station for two months. Periods with sitting and standing computer work were identified using on-site observations, and posture means and minute-to-minute variance were determined for both. Expected minute-to-minute posture variability in different temporal combinations of sitting and standing computer work were determined by simulation, and expressed in terms of a Job Variance Ratio, i.e. the relative increase in variability compared to sitting-only work. For all three postures, mean values differed between sitting and standing computer work, and both showed a notable minute-to-minute variability. For most workers, posture variability was larger when combining sitting and standing than when sitting only, and simulations suggested to introduce more standing than what the worker currently practiced. The results indicate that introducing a sit-stand table could, for most office workers, have a positive effect on upper arm, neck and trunk posture variability.

Place, publisher, year, edition, pages
2019. Vol. 75, p. 120-128
Keywords [en]
office work; adjustable table; job variance ratio (JVR); sedentary behaviors, trunk flexion, upper arm elevation
National Category
Occupational Health and Environmental Health
Identifiers
URN: urn:nbn:se:hig:diva-23157DOI: 10.1016/j.apergo.2018.09.012ISI: 000454371900010PubMedID: 30509516Scopus ID: 2-s2.0-8505417244OAI: oai:DiVA.org:hig-23157DiVA, id: diva2:1059843
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2009-1761
Note

Funders:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Grant n:o 472946/2013-7

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Grant n:o 2015/19504-4

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Grant n:o 2012/24502-2

National Council for Scientific Research

Available from: 2016-12-24 Created: 2016-12-24 Last updated: 2019-06-24Bibliographically approved

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Srinivasan, DivyaMathiassen, Svend Erik

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