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Effectiveness of powered hospital bed movers for reducing physiological strain and back muscle activation

Daniell, Nathan, Merrett, Simon, & Paul, Gunther (2014) Effectiveness of powered hospital bed movers for reducing physiological strain and back muscle activation. Applied Ergonomics, 45(4), pp. 849-856.

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    Abstract

    Battery powered bed movers are becoming increasingly common within the hospital setting. The use of powered bed movers is believed to result in reduced physical efforts required by health care workers, which may be associated with a decreased risk of occupation related injuries. However, little work has been conducted assessing how powered bed movers impact on levels of physiological strain and muscle activation for the user. The muscular efforts associated with moving hospital beds using three different methods; manual pushing, StaminaLift Bed Mover (SBM) and Gzunda Bed Mover (GBM)were measured on six male subjects. Fourteen muscles were assessed moving a weighted hospital bed along a standardized route in an Australian hospital environment. Trunk inclination and upper spine acceleration were also quantified. Powered bed movers exhibited significantly lower muscle activation levels than manual pushing for the majority of muscles. When using the SBM, users adopted a more upright posture which was maintained while performing different tasks (e.g. turning a corner, entering a lift), while trunk inclination varied considerably for manual pushing and the GBM. The reduction in lower back muscular activation levels and the load reducing effect of a more upright posture may result in lower incidence of lower back injury.

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    ID Code: 49004
    Item Type: Journal Article
    Additional URLs:
    Keywords: Hospital Bed Mover, Occupational Injury, Muscle Strain
    DOI: 10.1016/j.apergo.2013.11.001
    ISSN: 1872-9126
    Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000)
    Divisions: Current > QUT Faculties and Divisions > Faculty of Health
    Current > Schools > School of Public Health & Social Work
    Copyright Owner: Copyright 2013 Elsevier Ltd and The Ergonomics Society
    Copyright Statement: This is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics, [Volume 45, Issue 4, (July 2014)] DOI: 10.1016/j.apergo.2013.11.001
    Deposited On: 07 Mar 2012 09:36
    Last Modified: 25 Apr 2014 08:32

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