Physiologists have their own language for reporting the results of oxygen uptake experiments. They do not report results in calories. Instead, they use the term metabolic equivalents (METs). METs are rates of oxygen uptake per minute corrected for body weight, sustained by a rate of oxygen consumption of 3.5 ml/kg body weight/min. At a body weight of 125 pounds, 1 MET equals 1.0 calorie per minute (as given in table 10). But at a body weight of 155 pounds, 1 MET equals 1.2 calories, reflecting the higher energy requirement. These numbers are derived like so: 1 liter of oxygen corresponds to about 5 calories, or 0.005 calorie per ml, and 1 MET is defined as 3.5 ml of oxygen/kg/min in adults. Therefore a MET is also 0.0175 kcal/kg/min (3.5 × 0.005). For a 70 kg (155 lb) person, the calculation is 70 × 0.0175 = 1.225 METS. For a 57 kg (125 lb) person, it's 57 × 0.0175 = 0.9975 MET.