Body fat and water changes during pregnancy in women with different body weight and weight gain
Body fat and water changes during pregnancy in women with different body weight and weight gain
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DOI：
10.1016/s0029-7844(97)00355-4
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发表时间：
1997-10-01
影响因子：
7.2
通讯作者：
Pierson, RN
中科院分区：
文献类型：
--
作者：
Lederman, SA;Paxton, A;Pierson, RN
目的：为了确定沉积在怀孕期间的妇女增加的脂肪，根据医学研究所的建议和不同的起始体重（按体重指数分类）的妇女的体重增加与脂肪增加的关系：健康，不吸烟的妇女，18-36岁，在产前检查期间确定的队列研究在三家医院诊所和一个分娩中心在纽约市。从签署同意书的432名合格志愿者中，对200名妇女在怀孕14周（+/-2）和37周时进行身体成分测量，并在产后2-4周测量骨矿物质质量，使用总身体水分，体重和密度以及骨矿物质质量的模型估计体脂。在医学研究所推荐的女性中，体重不足、体重正常、超重或孕前肥胖的女性在怀孕期间的脂肪增量分别为6.0 +/- 2.6 kg、3.8 +/- 3.4 kg、3.5 +/- 4.1 kg和-0.6 +/- 4.6 kg，分别体重增加会增加脂肪增加。四个孕前体重groups.Conclusion：建议的体重增加不应该导致肥胖在任何体重组之间的身体水分增益没有不同。体重过轻的女性如果按照建议增加体重，她们的身体成分就会正常化，而肥胖的女性体内脂肪很少或没有变化。大多数妇女在怀孕期间没有获得建议的体重。(C)1997年由美国妇产科医师学会。
Objective: To determine the fat deposited during pregnancy in women gaining according to recommendations of the Institute of Medicine and the relationship of weight gain to fat gain in women of different starting weights (classified by their body mass index).Methods: A cohort study of healthy, nonsmoking women, 18-36 years of age, identified during prenatal visits at three hospital clinics and one birthing center in New York City. From a pool of 432 eligible volunteers who signed a consent form, body composition measurements were performed on 200 women at weeks 14 (+/-2) and 37+ of pregnancy, and bone mineral mass was measured at 2-4 weeks postpartum Body fat was estimated with a model that used total body water, weight, and density and bone mineral mass.Results: In women gaining as recommended by the Institute of Medicine, fat gains during pregnancy for women underweight, normal weight, overweight, or obese before pregnancy were 6.0 +/- 2.6 kg, 3.8 +/- 3.4 kg, 3.5 +/- 4.1 kg, and -0.6 +/- 4.6 kg, respectively. Higher weight gain increased fat gain. Body water gain was not different among the four prepregnancy weight groups.Conclusion: Recommended weight gain should not cause obesity in any weight group. Underweight women will normalize their body composition if they gain as recommended, whereas obese women will have little or no change in body fat. A majority of women do not gain as recommended during pregnancy. (C) 1997 by The American College of Obstetricians and Gynecologists.