Metabolic rate Measurement of the metabolic rate Direct calorimetry Indirect calorimetry o Caloric value/thermal equivalent of food Oxygen consumption /thermal equivalent of oxygen (1 L Respiratory quotient (CO2/OMetabolic rate Measurement of the metabolic rate Direct calorimetry Indirect calorimetry ⚫ Caloric value / thermal equivalent of food ⚫ Oxygen consumption / thermal equivalent of oxygen （1 L） ⚫ Respiratory quotient （CO2 / O2）