The physical working capacity of older individuals.
D000368:Aged; D000375:Aging; D001835:Body Weight; D004185:Disability Evaluation; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D012129:Respiratory Function Tests