EPI-MUS - Risk and preventive factors for musculoskeletal disorders and impaired performance during work with computer mouse and other input devices- a prospective cohort study

Information about physical, psycological and social working related factors and individual factors were given through a questionnaire at study start. In addition a workingplace vistit was carried out for assesment of the workstations design, working postures and working techniques according to a checklist .

The study subjects answered a short monthly questionnaire, repeted during 10 months, in order to identify new symptoms and possible changes in work. Subjects that reported new symptoms was clinically investigated in order to determine location, probable damaged structure and diagnosis. After the observation time the companies was given feedback regarding exposure conditions and occurence of symptoms, and discussions about changes was initiated.