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Comparison of the postural and physiological effects of two dynamic workstations to conventional sitting and standing workstations

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Author: Botter, J. · Ellegast, R.P. · Burford, E.M. · Weber, B. · Könemann, R. · Commissaris, D.A.C.M.
Type:article
Date:2016
Source:Ergonomics, 3, 59, 449-463
Identifier: 528186
doi: doi:10.1080/00140139.2015.1080861
Keywords: Workplace · Dynamic workstations · Postural analysis · Muscular activity · Physical activity · Work and Employment · Healthy Living · Life · SP - Sustainable Productivity and Employability · ELSS - Earth, Life and Social Sciences

Abstract

Increasing evidence is being found for the association of health risk factors with work-related physical inactivity. An increasing number of people are being exposed to this form of inactivity, and as a result, various interventions aimed at increasing physical activity during working hours are being developed. This study aims to investigate the differences in postural, muscular and physical activities resulting from two dynamic workstations, namely an elliptical trainer and a treadmill workstation, compared with a conventional sitting and standing workstation. Twelve participants completed five standardised office tasks in a laboratory setting at all workstations. No significant effect was found regarding changes in posture and the muscular activity was only significantly higher for the trapezius muscle (50th percentile: 8.1 %MVC) at the dynamic workstations. For the dynamic workstations, physical activity ranged from 4.0 to 14.9 × 10−2 g, heart rate from 14.3 to 27.5 %HRR and energy expenditure from 1.8 to 3.1 METs.