Age differences in some physiological functions during heavy physical work.
D000328:Adult; D000375:Aging; D001835:Body Weight; D006321:Heart / Q000502:physiology; D006339:Heart Rate; D006801:Humans; D008875:Middle Aged; D010101:Oxygen Consumption; D005082:Physical Exertion; D012143:Respiratory Physiological Phenomena; D014797:Vital Capacity