Age changes in some indices of aerobic work capacity in boys aged 7-16 years.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D011674:Pulse