UNIGE document Scientific Article
previous document  unige:21134  next document
add to browser collection
Title

Prepregnancy body mass index and resting metabolic rate during pregnancy

Authors
Schutz, Yves
Othenin Girard, Veronique
show hidden authors show all authors [1 - 9]
Published in Annals of Nutrition and Metabolism. 2010, vol. 57, no. 3-4, p. 221-227
Abstract AIM: The resting metabolic rate (RMR) varies among pregnant women. The factors responsible for this variability are unknown. This study aimed to assess the influence of the prepregnancy body mass index (BMI) on the RMR during late pregnancy. METHODS: RMR, height, weight, and total (TEE) and activity (AEE) energy expenditures were measured in 46 healthy women aged 31 +/- 5 years (mean +/- SD) with low (<19.8), normal (19.8-26.0), and high (>26.0) prepregnancy BMI at 38.2 +/- 1.5 weeks of gestation (t(gest)) and 40 +/- 7 weeks postpartum (t(post)) (n = 27). RESULTS: The mean t(gest) RMR for the low-, normal-, and high-BMI groups was 1,373, 1,807, and 2,191 kcal/day, respectively (p = 0.001). The overall mean t(gest) RMR was 316 +/- 183 kcal/day (21%), higher than the overall mean t(post) value and this difference was correlated with gestational weight gain (r = 0.78, p < 0.001). The scaled metabolic rate by allometry (RMR/kilograms.(3)) was similar in the low-, normal-, and high-BMI groups, respectively (p = 0.45). Changes in t(gest) TEE closely paralleled changes in t(gest) RMR (r = 0.84, p < 0.001). AEE was similar among the BMI groups. CONCLUSION: The RMR is significantly increased in the third trimester of pregnancy. The absolute gestational RMR is higher in women with high prepregnancy BMI due to increased body weight. The scaled metabolic rate (RMR/kilograms.(3)) is similar among the BMI groups of pregnant women.
Keywords AdultBasal Metabolism/*physiologyBody Composition/*physiology*Body Mass IndexEnergy Metabolism/*physiologyFemaleHumansPregnancy/*metabolismWeight Gain/physiology
Identifiers
PMID: 21124024
Full text
Structures
Research groups Groupe Irion Olivier/Boulvain Michel (gynécologie et obstétrique) (272)
Groupe Kayser Bengt (médecine du sport) (306)
Nutrition clinique (597)
Citation
(ISO format)
MELZER, Katarina et al. Prepregnancy body mass index and resting metabolic rate during pregnancy. In: Annals of Nutrition and Metabolism, 2010, vol. 57, n° 3-4, p. 221-227. https://archive-ouverte.unige.ch/unige:21134

227 hits

0 download

Update

Deposited on : 2012-05-23

Export document
Format :
Citation style :