Comparison of cardiorespiratory responses to graded upright exercise of normal men aged 20-29 and 30-39.
D000328:Adult; D000375:Aging; D001794:Blood Pressure / Q000502:physiology; D002302:Cardiac Output / Q000502:physiology; D002320:Cardiovascular Physiological Phenomena; D005080:Exercise Test; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion / Q000502:physiology*; D012119:Respiration / Q000502:physiology*; D014655:Vascular Resistance / Q000502:physiology