title: Effect of type and frequency of participation in physical activity upon physical working capacity.
mesh_terms: D000328:Adult; D003327:Coronary Disease / Q000517:prevention & control*; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D008297:Male; D010806:Physical Education and Training; D010809:Physical Fitness; D013997:Time Factors