Postural adaptations to workbench modifications in standing workers

Ergonomics
R S WhistanceR S Bridger

Abstract

Surveys have shown that many workers operate under conditions that require constrained standing. The aim of this study was to investigate postural adaptations in constrained standing to facilitate the development of design guidelines for standing workspaces. Standing postures were observed in six different workspaces that were designed using combinations of task distance (which was either constrained or unconstrained) and foot position (which was constrained, unconstrained or employed a footrest). Subjects at work were recorded stereophotogrammetrically and postural variables were obtained in three dimensions. Postural adaptation to increased task distance was found to be characterized by increased trunk flexion and increased hip flexion while adaptation to close work was found to be characterized by increased neck flexion and increased thoracic kyphosis. Constrained foot position resulted in increased hip flexion accompanied by increased plantar flexion. Although use of the footrest resulted in some reduced lumbar lordosis, it increased trunk flexion and was not associated with significantly less discomfort than any of the other workspaces.

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Citations

Aug 13, 2008·Experimental Brain Research·Marcos Duarte, Dagmar Sternad
Dec 6, 2000·Ergonomics·M Duarte ZatsiorskyVM
Nov 13, 2004·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·Karen Messing
Jun 17, 2008·Manual Therapy·Cristiane Shinohara MoriguchiHelenice Jane Cote Gil Coury
Sep 5, 2015·Human Movement Science·Kaitlin M Gallagher, Jack P Callaghan
Nov 9, 2005·Gait & Posture·Sandra M S F FreitasMarcos Duarte
May 18, 2016·Applied Ergonomics·Kaitlin M Gallagher, Jack P Callaghan
Jul 23, 2016·Clinical Biomechanics·Kaitlin M GallagherJack P Callaghan
Oct 4, 2016·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Daniel Viggiani, Jack P Callaghan
Sep 28, 2017·Journal of Back and Musculoskeletal Rehabilitation·Jae-Ik SonYe-Ji Jung
May 16, 2019·Motor Control·Janina M Prado-Rico, Marcos Duarte
Dec 1, 2018·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Abdulhamit MisirMehmet Yetis

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