二、能量代谢的测定 能量代谢率(energy metabolic rate,EMR) The amount of energy liberated per unit of time is EMR. 能量守衡: 食物的化学能=热能+外功+热储备 能量代谢=热能+外功+热储备 Energy output heat loss+0 +0二、能量代谢的测定 能量代谢率(energy metabolic rate,EMR) The amount of energy liberated per unit of time is EMR. 能量守衡: 食物的化学能 = 热能 + 外功+热储备 能量代谢 = 热能 + 外功 + 热储备 Energy output = heat loss + 0 + 0