Multistage treadmill walking performance and associated cardiorespiratory responses of middle-aged men.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001794:Blood Pressure; D001835:Body Weight; D004562:Electrocardiography; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D005082:Physical Exertion; D012119:Respiration; D013997:Time Factors