Energy requirements of infants
Energy requirements of infants
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DOI：
10.1079/phn2005790
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发表时间：
2005-10-01
影响因子：
3.2
通讯作者：
Butte, NF
中科院分区：
文献类型：
--
作者：
Butte, NF
目的：从生长过程中的总能量消耗和能量沉积来估计婴儿的能量需求。设计：婴儿期的能量需求是从通过双标记水方法测量的总能量消耗和基于测量的蛋白质和脂肪增加的能量沉积来估计的。关于婴儿总能量消耗和能量沉积的数据库是根据在中国、智利、冈比亚、墨西哥，荷兰，英国和美国。主题：健康，足月婴儿。结果：总能量需求（千焦天（-1））随着年龄的增长，男孩比女孩高，由于体重的差异。能量需求从1个月大时男孩每天473 kJ kg（-1）和女孩每天447 kJ kg（-1）下降到6个月大时男孩每天337 kJ kg（-1）和女孩每天341 kJ kg（-1），此后趋于平稳。能量沉积占总能量需求的百分比从1个月龄时的40%下降到12个月龄时的3%。这些估计是10-32%低于1985年FAO/WHO/联合国大学的建议，这是根据观察到的能量摄入量的infants.Conclusions：建议的能量摄入量的婴儿应根据新的估计总的能量支出和能量沉积进行修订。
Objective: To estimate the energy requirements of infants from total energy expenditure and energy deposition during growth.Design: Energy requirements during infancy were estimated from total energy expenditure measured by the doubly labelled water method and energy deposition based on measured protein and fat gains.Setting: Database on the total energy expenditure and energy deposition of infants was compiled from available studies conducted in China, Chile, Gambia, Mexico, Netherlands, UK, and USA.Subjects: Healthy, term infants.Results: Total energy requirements (kJ day(-1)) increased with age and were higher in boys than girls due to differences in weight. Energy requirements decreased from 473 kJ kg(-1) per day for boys and 447 kJ kg(-1) per day for girls at 1 month of age to 337 kJ kg(-1) per day for boys and 341 kJ kg(-1) per day for girls at 6 months of age, and thereafter tended to plateau. Energy deposition as a percentage of total energy requirements decreased from 40% at 1 month to 3% at 12 months of age. These estimates are 10-32% lower than the 1985 FAO/WHO/UNU recommendations which were based on observed energy intakes of infants.Conclusions: Recommendations for the energy intake of infants should be revised based on new estimates of total energy expenditure and energy deposition.