ABSTRACT The primary purpose of the present investigation was to evaluate the effects of exercise on simple cognitive performance and on psychological well-being in persons over fifty years of age. A secondary purpose was to assess the relationship between a set of subject variables and drop-out from fitness programs. Twenty-nine new and 37 active volunteers from the St. John's 3F fitness club for persons over fifty years of age served as subjects. Initial assessment on fitness and psychological measures was carried out within three weeks of the start/restart of the program. A second testing took place six months later. Significant pre/post differences were obtained on measures of reaction time, flexibility, balance, extra program activity, and digit symbol performance. Group by pre/post effects also reached statistical significance for psychological well-being. These results suggest that the beneficial effects of exercise are not limited to physical fitness variables, but may extend to cognitive and personality processes.
Stacey et al. (Sat,) studied this question.