Accuracy of methods for estimating O 2  cost of walking in coronary patients.
D000328:Adult; D000367:Age Factors; D003327:Coronary Disease / Q000534:rehabilitation; D005081:Exercise Therapy; D006801:Humans; D008124:Locomotion; D008297:Male; D008722:Methods; D008875:Middle Aged; D010101:Oxygen Consumption; D005082:Physical Exertion; D011336:Probability; D013147:Spirometry