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Is objectively measured sitting at work associated with low back pain? A cross sectional study in the DPhacto cohort
National Research Centre for the Working Environment, Copenhagen.
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: 0000-0002-2741-1868
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 Public Health, Faculty of Health Sciences, University of Copenhagen.
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2017 (English)In: Scandinavian Journal of Work, Environment and Health, ISSN 0355-3140, E-ISSN 1795-990XArticle in journal (Refereed) Submitted
Abstract [en]

Objectives Low back pain is a substantial health challenge, as it increases the risk for long term sickness absence and early retirement, having profound consequences for individuals, organizations and society. Biomechanical exposures at work, e.g. sitting, are believed to be determinants of LBP. The objective of this paper was to investigate the association of temporal patterns and total amount of objectively measured sitting at work and during whole days and intensity of LBP, and whether these associations are affected by different moderators.

Methods This study is a cross sectional analysis of baseline data from the Danish PHysical ACTivity cohort with objective measurements among cleaning, transport and manufacturing occupational groups. The study was approved by the Danish data protection agency and local Ethics Committee (H-2-2012-011). Intensity of low back pain was collected by questionnaire on a 0-10 scale and sitting was objectively measured by accelerometry. Sitting were expressed in terms of both total duration and temporal pattern, i.e. time spent in brief bursts (≤5 minutes), moderate periods (>5 – ≤20 minutes) and prolonged periods (>20 minutes), and analyzed during work and the whole day (waking hours only).

Results Analyses were conducted on 704 participants. The linear regressions showed no significant associations between total duration or temporal patterns of sitting, during work and whole day, and intensity of LBP. BMI was the only moderator significantly interacting with sitting.

Conclusion Within this population it seems that exposures, other than sitting, may have a greater influence on intensity of LBP.

Place, publisher, year, edition, pages
2017.
Keyword [en]
Sedentary; accelerometer; occupational health; occupational sitting; physical activity; inactivity; temporal patterns; time pattern; musculoskeletal disorders; musculoskeletal pain
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:hig:diva-24188OAI: oai:DiVA.org:hig-24188DiVA: diva2:1109002
Available from: 2017-06-13 Created: 2017-06-13 Last updated: 2017-07-04Bibliographically approved

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