Moderate evidence was observed for : ( 1 ) no effect of workstation adjustment , ( 2 ) no effect of rest breaks and exercise and ( 3 ) positive effect of alternative pointing devices .
For all other interventions mixed or insufficient evidence of effect was observed .
Conclusion : Few high quality studies were found that examined the effects of interventions in the office on musculoskeletal or visual health
Background : The literature examining the effects of workstation , eyewear and behavioral interventions on  musculoskeletal and visual symptoms among computer users is large and heterogeneous .
Methods : A systematic review of the literature used a best evidence synthesis approach to address the general question “ Do office interventions among computer users have an effect on musculoskeletal or visual health ? ”
Effects of an ergonomic training program on workers with video display units.
OBJECTIVES This study evaluated the effect of an ergonomic training program on workstation changes and on the prevalence of  musculoskeletal disorders among video display unit ( VDU ) users at a large university . METHODS A pretest-posttest design with a reference group was used with r and om allocation of administrative and geographic units . In each group , the measurements involved direct observation of the workstations , a self-administered question naire , and a physical examination . The measurements were performed 2 weeks before and 6 months after the training in parallel in both groups . The study population was composed of 627 workers ( 81 % of those eligible ) . RESULTS The prevalence of all 3 of the postural stressors evaluated decreased in the experimental group after the training . In the reference group , 2 of the 3 stressors decreased in frequency but to a less extent . Some of these beneficial changes were more frequent in workers under 40 years of age . The prevalence of musculoskeletal disorders decreased among the workers under 40 years of age in the experimental group , from 29 % to 13 % determined by question naire and from 19 % to 3 % determined by physical examination . In other groups , there was no significant change in the prevalence of musculoskeletal disorders . CONCLUSIONS Improvements in postural stressors occurred more frequently in the experimental group , and these beneficial changes tended to be more frequent in workers under 40 years of age . Improvements in musculoskeletal disorders occurred in the experimental group among the workers under 40 years of age
Moderate evidence was observed for : ( 1 ) no effect of workstation adjustment , ( 2 ) no effect of rest breaks and exercise and ( 3 ) positive effect of alternative pointing devices .
For all other interventions mixed or insufficient evidence of effect was observed .
Conclusion : Few high quality studies were found that examined the effects of interventions in the office on musculoskeletal or visual health
Background : The literature examining the effects of workstation , eyewear and behavioral interventions on  musculoskeletal and visual symptoms among computer users is large and heterogeneous .
Methods : A systematic review of the literature used a best evidence synthesis approach to address the general question “ Do office interventions among computer users have an effect on musculoskeletal or visual health ? ”