To determine the effects of participation in selected physical activities on scores of self-concept, body-cathexis and four items of health-related fitness, 88 women in university physical education service classes participated 3 hr. per week for 8 wk. in one of five activities (aerobic dance, jogging for fitness, swimming for fitness, life saving, and weight training). A total of 108 subjects participated in the study, with 20 students in health science classes serving as the controls. Few differences were noted between the activity groups and the controls on the posttest with pretest scores controlled. Specifically, joggers and aerobic dancers performed significantly more situps than did the controls, and joggers, aerobic dancers, weight trainers, and those in the lifesaving group displayed significantly greater flexibility on the sit and reach test than did the controls, on the posttest. None of the activity groups differed from the controls regarding self-esteem, body cathexis, body fat, or the step test scores at posttest.