Physical fitness of the Czechoslovak 12-and 15-year-old population.
D000273:Adipose Tissue; D000293:Adolescent; D000886:Anthropometry; D001827:Body Height; D001835:Body Weight; D002648:Child; D003604:Czechoslovakia; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D010809:Physical Fitness; D012119:Respiration