Changes in fat, fat-free mass and body water in human normal pregnancy
Pipe, N. G. J., Smith, T., Halliday, D., Williams, C. M., Edmonds, C. J. and Coltart, T. M. (1979) Changes in fat, fat-free mass and body water in human normal pregnancy. British Journal of Obstetrics and Gynaecology, 86 (12). pp. 929-940. ISSN 0306-5456
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To link to this article DOI: 10.1111/j.1471-0528.1979.tb11240.x
Measurements of body weight, total body water and total body potassium (40K) were made serially on three occasions during pregnancy and once post partum in 27 normal pregnant women. Skinfold thickness and fat cell diameter were also measured. A model of body composition was formulated to permit the estimation of changes in fat, lean tissue and water content of the maternal body. Total maternal body fat increased during pregnancy, reaching a peak towards the end of the second trimester before diminishing. Serial measurements of fat cell diameter showed poor correlation, whilst total body fat calculated from skinfold thickness correlated well with our estimated values for total body fat in pregnancy.
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