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PMID: 3113536 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Reduction in postprandial energy expenditure during pregnancy.

British medical journal (Clinical research ed.) ·Vol. 294 ·No. 6587 ·1987-06-20 ·Pages 1573-6

Illingworth PJ, Jung RT, Howie PW, Isles TE

Abstract

Energy expenditure was measured during pregnancy in seven primigravid women at 12-15, 25-28, and 34-36 weeks and after the cessation of lactation. On each occasion the resting metabolic rate and the increase in metabolic rate after ingestion of a liquid test meal were measured by indirect calorimetry. In absolute terms the resting metabolic rate increased steadily during pregnancy but when expressed per unit of body weight no change was found. The energetic response to a mixed constituent meal was significantly reduced by 28% in the middle trimester of pregnancy. These findings suggest a possible maternal adaptation to increase energetic efficiency at a time when the energy demands of the fetus are high.

MeSH Terms
Adaptation, Physiological Basal Metabolism Blood Glucose/analysis,metabolism Body Weight Energy Metabolism Female Humans Insulin/metabolism Lactation/metabolism Pregnancy/metabolism
Chemicals
Blood Glucose Insulin
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Illingworth P J
Jung R T
Howie P W
Isles T E
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23 references, click to expand
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Article Info
Journal
British medical journal (Clinical research ed.)
Abbr.
Br Med J (Clin Res Ed)
ISSN
0267-0623
DOI
10.1136/bmj.294.6587.1573
Published
1987-06-20
Pages
1573-6
Language
English
Region
England
NLM ID
8302911
PMCID
PMC1246726
Subset
IM
External Links
PubMed source DOI: 10.1136/bmj.294.6587.1573 PMC Full Text
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