Evaluating biomechanics of user-selected sitting and standing computer workstation

Applied Ergonomics
Michael Y LinJack T Dennerlein

Abstract

A standing computer workstation has now become a popular modern work place intervention to reduce sedentary behavior at work. However, user's interaction related to a standing computer workstation and its differences with a sitting workstation need to be understood to assist in developing recommendations for use and set up. The study compared the differences in upper extremity posture and muscle activity between user-selected sitting and standing workstation setups. Twenty participants (10 females, 10 males) volunteered for the study. 3-D posture, surface electromyography, and user-reported discomfort were measured while completing simulated tasks with each participant's self-selected workstation setups. Sitting computer workstation associated with more non-neutral shoulder postures and greater shoulder muscle activity, while standing computer workstation induced greater wrist adduction angle and greater extensor carpi radialis muscle activity. Sitting computer workstation also associated with greater shoulder abduction postural variation (90th-10th percentile) while standing computer workstation associated with greater variation for should rotation and wrist extension. Users reported similar overall discomfort levels within th...Continue Reading

Citations

Feb 23, 2020·Work : a Journal of Prevention, Assessment, and Rehabilitation·Sara Taylor Eggleston
Dec 17, 2020·Work : a Journal of Prevention, Assessment, and Rehabilitation·Mona SahuJayaseelan Clement Sudhahar
Aug 15, 2017·Applied Ergonomics·C C RoossienM F Reneman
May 26, 2021·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Susan EmersonJane Fedorczyk

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