应用双标记水法测定4月龄婴儿能量消耗的研究

Energy expenditure of 4-month-old Chinese infants using double-labeled water method

为探讨婴儿的能量摄入是否满足其基础代谢、活动和生长的需要,用双标记水法对广东12例4月龄健康婴儿(母乳喂养和人工喂养各6例)的总能量消耗进行为期8天的测量。同时用称重法测定能量摄入和估计生长的能量贮留。结果表明,母乳和人工喂养组的能量摄入分别为344±69和394±50kJ·kg^(-1)·d^(-1),能量贮留分别为54±11和46±20kJ·kg^(-1)·d^(-1),能量消耗分别为305±87和320±98kJ·kg^(-1)·d^(-1)。提示4月龄婴儿的能量需要量为356～397kJ·kg^(-1)·d^(-1)。

To determine whether the energy intake was sufficient for the maintenance, activity and growth of infants, we measured the energy expenditure of 12 healthy 4-month-old infants (6 breast fed and 6 formula fed) for a period of 8 days using the double labeled water method in Guangdong province. Energy intake and energy storage in the body were estimated from the body weight difference during the period of study. Mean energy intake was 344±69kJ·kg-1·d^(-1) in breast fed infants (BF) and 3944- 50kJ ~ kg-~ ~ d-~ in formula fed infants (FF), respectively. Mean energy storage in the body was 54±11(BF) and 46±20kJ·kg^(-1)·d^(-1)(FF), respectively and total energy expenditure was 305±87 (BF) and 3204±98kJ ·kg^(-1)·d^(-1) (FF), respectively. We conclude that the energy requirement for 4-month-old infants should be within the range of 356～397kJ·kg^(-1)·d^(-1).