[Health-related effects of repetitive activities]

Two hundred workers of the Swiss watch industry were examined in a study of repetitive work effects on the well-being of workers. Repetitive work has shown to have two main influences on well-being: Relationships were found between subjective assessment of variety and autonomy, job satisfaction, psychosomatic complaints and headache. Repetitive work was always done under some positional constraint. This was shown to result in an increased rate of "arm, neck, shoulder syndrome" and visual problems.