Evidence of energy sparing in Gambian women during pregnancy: a longitudinal study using whole-body calorimetry.

Détails

ID Serval
serval:BIB_DE4E64705652
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Evidence of energy sparing in Gambian women during pregnancy: a longitudinal study using whole-body calorimetry.
Périodique
American Journal of Clinical Nutrition
Auteur⸱e⸱s
Poppitt S.D., Prentice A.M., Jéquier E., Schutz Y., Whitehead R.G.
ISSN
0002-9165 (Print)
ISSN-L
0002-9165
Statut éditorial
Publié
Date de publication
1993
Volume
57
Numéro
3
Pages
353-364
Langue
anglais
Résumé
Components of daily energy expenditure were measured serially by whole-body calorimetry in Gambian women before pregnancy and at 6, 12, 18, 24, 30, and 36 wk gestation. Weight gain was (mean +/- SD) 6.8 +/- 2.8 kg, fat deposition was 2.0 +/- 2.5 kg and lean tissue deposition was 5.0 +/- 2.5 kg. Basal metabolic rate (BMR) was depressed during the first 18 wk of gestation, causing total cumulative maintenance costs by week 36 to be 8.4 MJ. Individual responses to pregnancy correlated with changes in body mass (36 wk: delta BMR vs delta weight; r = 0.60, P < 0.01 delta BMR vs delta LBM; r = 0.62, P < 0.01). There was no significant increase in the cost of treadmill exercise (0% slope: F = 0.71, P = 0.64; 5% slope: F = 1.97, P = 0.10), 24-h energy expenditure (F = 0.72, P = 0.64), activity or diet-induced thermogenesis (F = 1.02, P = 0.43), during pregnancy in spite of body weight gain. Total metabolic costs over 36 wk were 144 MJ (fetus 43 MJ, fat deposition 92 MJ, cumulative maintenance costs 8.4 MJ). These were far lower than reported for well-nourished Western populations.
Mots-clé
Adipose Tissue, Adolescent, Adult, Basal Metabolism, Body Composition, Calorimetry, Energy Metabolism, Exercise/physiology, Female, Gambia, Humans, Longitudinal Studies, Pregnancy/physiology, Time Factors, Weight Gain
Pubmed
Web of science
Création de la notice
21/01/2008 13:09
Dernière modification de la notice
20/08/2019 16:02
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