Body composition and energy metabolism in pregnancy Martin, Allison en_US Brown, Mark en_US O'Sullivan, Anthony en_US 2021-11-25T14:04:28Z 2021-11-25T14:04:28Z 2001 en_US
dc.description.abstract Summary: The objective of the study was to measure energy metabolism and body composition during pregnancy and postpartum, compared to non-pregnant women, using non-invasive techniques. A longitudinal study of eight normotensive pregnant women was carried out at 19 ± 1 and 36 ± 1 weeks gestation, and postpartum. A cross-sectional study was also performed comparing postpartum to 12 nonpregnant women. Indirect calorimetry was performed while fasting to measure basal metabolic rate (BMR) and postprandially to measure diet-induced thermogenesis (DIT). Body composition consists of fat mass, lean body mass (LBM), and total body water (TBW) and was measured by bio-electrical impedance. Insulin resistance was indirectly assessed by glucose and insulin concentration and DIT. Weight gain in pregnancy was predominantly fat mass (p < 0.01), but LBM and TBW also increased (p < 0.01). Weight loss postpartum was comprised of fat mass, LBM and TBW (p < 0.01). BMR, glucose and insulin increased in pregnancy and decreased postpartum (p < 0.05), but DIT was unchanged. The BMR was not correlated with weight gain. Apart from fat mass, postpartum and non-pregnant women were similar. The insulin resistance increased insulin and glucose levels but not DIT. Fat mass was the major component of weight gain during pregnancy and there was an increase in BMR, glucose and insulin but no change in DIT. BMR decreased to normal but fat mass remained elevated 16 weeks post-partum. en_US
dc.identifier.issn 0004-8666 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Body composition and energy metabolism in pregnancy en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.description.publisherStatement The definitive version is available at en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Other UNSW
unsw.relation.faculty Medicine & Health
unsw.relation.ispartofissue 2 en_US
unsw.relation.ispartofjournal Australian and New Zealand Journal of Obstetrics and Gynaecology en_US
unsw.relation.ispartofpagefrompageto 217-223 en_US
unsw.relation.ispartofvolume 41 en_US
unsw.relation.originalPublicationAffiliation Martin, Allison, UNSW en_US
unsw.relation.originalPublicationAffiliation Brown, Mark, Clinical School - St George Hospital, Faculty of Medicine, UNSW en_US
unsw.relation.originalPublicationAffiliation O'Sullivan, Anthony, Clinical School - St George Hospital, Faculty of Medicine, UNSW en_US Clinical School St George Hospital *
Resource type