alexa Office task effects on comfort and body dynamics in five dynamic office chairs.
Engineering

Engineering

Industrial Engineering & Management

Author(s): Groenesteijn L, Ellegast RP, Keller K, Krause F, Berger H,

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Abstract In the present study, we investigated the effect of office tasks on posture and movements in field settings, and the comfort rating for chair characteristics and correlation with type of task. The tasks studied were: computer work, telephoning, desk work and conversation. Postures, movements, chair part inclinations and comfort rating data were collected from 12 subjects. Computer work showed the lowest physical activity, together with upright trunk and head position and low backrest inclination. Conversation shows the highest activity of head legs and low back together with the highest cervical spine extension. In contrast, desk work provoked the most cervical spine flexion and showed the second lowest activity. The telephoning tasks showed medium activity and the highest kyphosis. Conversation showed the highest backrest inclination. Positive comfort relations were found for computer work and a "swing system" chair, for telephoning and an active longitudinal seat rotation, and for desk work and a chair with a three-dimensionally moveable seat. Crown Copyright © 2011. Published by Elsevier Ltd. All rights reserved. This article was published in Appl Ergon and referenced in Industrial Engineering & Management

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