Document Detail

Changing diet and physical activity to reduce gestational weight gain: a meta-analysis.
MedLine Citation:
PMID:  21521451     Owner:  NLM     Status:  MEDLINE    
Excessive pregnancy weight gain is associated with adverse maternal and child health outcomes. Intervention developers have assumed that adopting a healthier diet and increasing physical activity in pregnancy can limit weight gain, but evaluations of such interventions have yielded mixed results. Recent reviews of this literature have not identified defining characteristics of effective interventions. We systematically reviewed 10 published controlled trials of interventions that aimed to reduce gestational weight gain through changes in diet or physical activity. Characteristics of the sample, intervention content and delivery, and methodology were categorized. Meta-analysis showed that, overall, diet and physical activity change was effective in reducing gestational weight gain, but there was considerable heterogeneity in outcomes. Our analysis points to sample characteristics and aspects of intervention design, content, delivery and evaluation which differ between studies and may explain variation in effectiveness. Failure to evaluate changes in behaviour or its psychological determinants, and under-reporting of intervention content, may obscure identification of the processes by which weight change is effected. This limits our ability to discern active intervention ingredients. We suggest that behaviour-based gestational weight gain reduction interventions be more systematically designed, evaluated and reported to build on insights from behavioural science.
B Gardner; J Wardle; L Poston; H Croker
Publication Detail:
Type:  Journal Article; Meta-Analysis; Review     Date:  2011-04-27
Journal Detail:
Title:  Obesity reviews : an official journal of the International Association for the Study of Obesity     Volume:  12     ISSN:  1467-789X     ISO Abbreviation:  Obes Rev     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-06-16     Completed Date:  2011-10-20     Revised Date:  2014-03-14    
Medline Journal Info:
Nlm Unique ID:  100897395     Medline TA:  Obes Rev     Country:  England    
Other Details:
Languages:  eng     Pagination:  e602-20     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. obesity reviews © 2011 International Association for the Study of Obesity.
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MeSH Terms
Behavior Therapy
Health Knowledge, Attitudes, Practice
Motor Activity*
Obesity / prevention & control
Randomized Controlled Trials as Topic
Weight Gain*
Grant Support
14133//Cancer Research UK; RP-PG-0407-10452//Department of Health

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