Thongprasert K, Tanphaichitre V, Valyasevi A, Kittigool J, Durnin J V
Research Centre, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Lancet. 1987 Oct 31;2(8566):1010-2. doi: 10.1016/s0140-6736(87)92568-2.
The energy cost of pregnancy was measured in rural Thai women between 10 wk gestation and term. The energy cost of pregnancy, which includes the increase in basal metabolic rate (BMR), the energy equivalent of maternal fat laid down, and the assumed energy equivalent of fetal fat and fetal and maternal protein, was 202 MJ (1 MJ = 239 kcal). BMR increased by 100 MJ overall and maternal fat gain averaged about 1.3 kg, equivalent to 60 MJ. The energy cost was more than covered by an overall increase in food intake of 238 MJ with little evidence of any complementary reduction in total energy expenditure by reduced physical activity.
对泰国农村妊娠10周的妇女直至足月的妊娠能量消耗进行了测量。妊娠的能量消耗包括基础代谢率（BMR）的增加、母体储存脂肪的能量当量，以及假定的胎儿脂肪、胎儿和母体蛋白质的能量当量，为202兆焦（1兆焦 = 239千卡）。基础代谢率总体增加了100兆焦，母体脂肪平均增加约1.3千克，相当于60兆焦。食物摄入量总体增加238兆焦，足以弥补能量消耗，几乎没有证据表明身体活动减少会使总能量消耗相应减少。
