Maximal aerobic capacity on the treadmill and bicycle ergometer of boys 11-14 years of age.
D000293:Adolescent; D001775:Blood Circulation; D002320:Cardiovascular Physiological Phenomena; D002648:Child; D006801:Humans; D008297:Male; D009132:Muscles / Q000378:metabolism; D010101:Oxygen Consumption; D005082:Physical Exertion; D010809:Physical Fitness; D012119:Respiration