Coronary heart disease and physical activity--a fresh look.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000531:Altitude; D001835:Body Weight; D003327:Coronary Disease / Q000453:epidemiology / Q000401:mortality / Q000517:prevention & control*; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D010806:Physical Education and Training; D005082:Physical Exertion; D010809:Physical Fitness; D013019:South Africa