Multi-dynamic office chair: natural sitting behaviour with proper body support
conference paper
Office work often requires seated postures for many hours a day. It has been observed that during sitting various postures are adopted. Obvious1y, one reason for this behaviour is given by the variety of postural demands stemming from the operations to be performed. Furthermore, we know that sustained postures most often demand a continuous muscle activity (static load), which may lead to fatigue, discomfort, and musculoskeletal disorders. Most likely, the postural behaviour observed exists in order to shift the static load from one group of muscles to another, thereby creating temporary relief. Static muscle load may also be reduced by proper body support. The successive generations of office chairs (figure 1) do increase the variety of supported postures that can be adopted. The purpose of this study is to describe the sitting behaviour and evaluation of a multidynamic chair, the Savo 90HL with Savo Floating Tilt. For reference purposes a tip-up chair and a fixed chair were studied. The study (reference 1) was conducted on behalf of Savo A/S.
Topics
TNO Identifier
11426
Publisher
Finnish Institute of Occupational Health
Source title
Proceedings of 3rd International Scientific Conference on Prevention of Work-Related Musculoskeletal Disorders and the 13th International Symposium on Epidemiology in Occupational Health PREMUS-ISEOH '98, 21-25 September 1998, Helsinki, Finland
Place of publication
Helsinki
Pages
152