Abstract
Evidence on the psychological effects of exercise on employees is considered. Studies which examined the effect of company-sponsored exercise programmes as well as those examining the more general effect of exercise in work settings are reviewed. It is concluded that the evidence for psychological benefits is equivocal. Due to methodological problems, it is difficult to determine whether exercise is responsible for the positive effects reported. Four personality characteristics which may be responsible for both exercise and psychological reactions to work are considered, and a model is then presented. It was concluded that future studies examining the impact of exercise should consider this dispositional model.