Macro repositioning movements of pelvis and trunk during simulated driving tasks

Fernanda Maradei, Leonardo Quintana, Javier Castellanos

    Research output: Contribution to journalArticlepeer-review

    7 Scopus citations

    Abstract

    Low back pain (LBP). 3 is one of the most important features of discomfort in prolonged sitting postures. This is evidenced by an increase in the number of postural changes called macro-movements. The focus of study was the frequencies of macro repositioning movements in prolonged sitting posture resulting from the perception of discomfort caused by low-back pain. Eighteen (18) drivers performed driving tasks for a period of 90min. The results indicate that LBP participants performed more movements (10.52rep/h), compared to without low back pain participants (8.52rep/h). However, the latter moved more than expected due to joint macro movements of the pelvis and trunk. LBP subjects generally performed macro-repositioning movements of the trunk only, while without low back pain (WLBP). 4 subjects moved pelvis and trunk simultaneously. Although the WLBP participants moved less than those with LBP symptoms, they applied different movement strategies which should be considered in further research. Finally, the authors also propose that future research should be directed towards determining the influence of these lumbo pelvic movements when provided in a controlled manner, to improve comfort in seats and to help manufactures to offer better ergonomic seats. Relevance to industry: According to the findings of this study, control of lumbo pelvic movements could be used to improve the design and production of ergonomic seats for driving activities.

    Original languageEnglish
    Pages (from-to)19-28
    Number of pages10
    JournalInternational Journal of Industrial Ergonomics
    Volume46
    DOIs
    StatePublished - 1 Mar 2015

    Bibliographical note

    Funding Information:
    Financial support for this study was provided by a grant from the Pontificia Universidad Javeriana . Additionally the working group expresses its gratitude to professor Lawrence Shchulze, PhD.

    Publisher Copyright:
    © 2015 Elsevier B.V.

    Keywords

    • Ergonomics
    • Repositioning movements
    • Sitting posture

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