Paul A A, Muller E M, Whitehead R G
Trans R Soc Trop Med Hyg. 1979;73(6):686-92. doi: 10.1016/0035-9203(79)90022-1.
The quantitative relationships between dietary energy intake and weight gain in pregnancy, birthweight and lactation performance during the first three months of infancy have been studied in such a way as to take account of major differences in the patterns of heavy manual labour at different times of the year in a subsistence farming community. Maternal weight gain and the accumulation of subcutaneous fat were significantly lower when the last trimester of pregnancy fell during the time of heaviest farm work and lowest energy intakes. The birth-weight of babies was also significantly correlated with differences in energy intake throughout the year. During early lactation breast milk yields were significantly related to concomitant alterations in the subcutaneous fat stores. Evidence has been produced which suggests that in undernourished nursing women there could be a competition for dietary energy between the repleting maternal subcutaneous fat organs and the mammary glands at the expense of milk production.
在一个自给自足的农业社区，研究了孕期饮食能量摄入与体重增加、出生体重以及婴儿头三个月哺乳期表现之间的定量关系，研究方式考虑到了一年中不同时间繁重体力劳动模式的重大差异。当怀孕最后三个月处于农场工作最繁重且能量摄入最低的时期时，孕妇体重增加和皮下脂肪积累显著更低。婴儿的出生体重也与全年能量摄入的差异显著相关。在哺乳期早期，母乳产量与皮下脂肪储存的相应变化显著相关。有证据表明，在营养不良的哺乳期妇女中，母体皮下脂肪器官的恢复和乳腺之间可能会争夺饮食能量，从而以乳汁分泌为代价。
