Evaluation of an ergonomics intervention programme in VDT workplaces.

This paper focuses on an intervention programme based on the concept of participatory ergonomics. The study was designed within the framework of a multidisciplinary project concerned with identifying the work conditions and problems necessary to improve the working life of VDT operators with routine data-entry and data-dialogue tasks. The intervention programme was evaluated in two follow-up studies. The evaluation criteria covered the proposals for improvement emerging from (1) the intervention programme's final joint decisions (of experts and employees) on measures needed, and (2) workers' views of the effectiveness of the programme itself. As the implementation period was marked by increasing turbulence caused by recession in many branches of the Swedish economy, attention was paid to the impact of the restructuring and rationalization effected by company management in the workplaces under study. To obtain a better understanding of the outcome of the intervention programme, the follow-up was extended systematically to explore the disturbing organizational factors operating during the implementation period. The results of the evaluation offer increased knowledge of organizational barriers to the implementation of ergonomics measures decided upon within the framework of intervention research.