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The effects of antenatal dietary and lifestyle advice for women who are overweight or obese on maternal diet and physical activity: the LIMIT randomised trial

Dodd, Jodie M., Cramp, Courtney, Sui, Zhixian, Yelland, Lisa N., Deussen, Andrea R., Grivell, Rosalie M., Moran, Lisa J., Crowther, Caroline A., Turnbull, Deborah, McPhee, Andrew J., Wittert, Gary, Owens, Julie A., Robinson, Jeffrey S. and LIMIT Randomised Trial Group 2014, The effects of antenatal dietary and lifestyle advice for women who are overweight or obese on maternal diet and physical activity: the LIMIT randomised trial, BMC medicine, vol. 12, pp. 1-19, doi: 10.1186/s12916-014-0161-y.

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Title The effects of antenatal dietary and lifestyle advice for women who are overweight or obese on maternal diet and physical activity: the LIMIT randomised trial
Author(s) Dodd, Jodie M.
Cramp, Courtney
Sui, Zhixian
Yelland, Lisa N.
Deussen, Andrea R.
Grivell, Rosalie M.
Moran, Lisa J.
Crowther, Caroline A.
Turnbull, Deborah
McPhee, Andrew J.
Wittert, Gary
Owens, Julie A.ORCID iD for Owens, Julie A. orcid.org/0000-0002-7498-1353
Robinson, Jeffrey S.
LIMIT Randomised Trial Group
Journal name BMC medicine
Volume number 12
Article ID 161
Start page 1
End page 19
Total pages 19
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2014-10-13
ISSN 1741-7015
Keyword(s) Adult
Australia
Diet
Exercise
Female
Humans
Infant, Newborn
Life Style
Male
New Zealand
Obesity
Pregnancy
Pregnancy Complications
Pregnancy Outcome
Prenatal Care
Risk Reduction Behavior
Treatment Outcome
LIMIT Randomised Trial Group
Science & Technology
Life Sciences & Biomedicine
Medicine, General & Internal
General & Internal Medicine
Overweight and obesity
Diet composition
Physical activity
Randomised trial
Dietary and lifestyle intervention
GESTATIONAL WEIGHT-GAIN
HEALTHY EATING INDEX
FOOD FREQUENCY QUESTIONNAIRE
BODY-MASS INDEX
PREGNANT-WOMEN
GLYCEMIC-INDEX
GLUCOSE-METABOLISM
OBSTETRIC OUTCOMES
BIRTH-WEIGHT
QUALITY
Summary BACKGROUND: Overweight and obesity is a significant health concern during pregnancy. Our aim was to investigate the effect of providing antenatal dietary and lifestyle advice to women who are overweight or obese on components of maternal diet and physical activity. METHODS: We conducted a randomised controlled trial, in which pregnant women with a body mass index≥25 kg/m2, and singleton gestation between 10(+0) to 20(+0) weeks were recruited and randomised to Lifestyle Advice (involving a comprehensive dietary and lifestyle intervention over their pregnancy) or Standard Care. Within the intervention group, we conducted a nested randomised trial in which a subgroup of women were further randomised to receive access to supervised group walking sessions in addition to the standard information presented during the intervention contacts (the Walking group) or standard information only. The outcome measures were maternal dietary intake, (including food groups, macronutrient and micronutrient intake, diet quality (using the Healthy Eating Index; HEI), dietary glycaemic load, and glycaemic index) and maternal physical activity. Women completed the Harvard Semi-Structured Food Frequency Questionnaire, and the Short Questionnaire to Assess Health-enhancing Physical Activity (SQUASH), at trial entry, 28 and 36 weeks' gestational age, and 4 months postpartum. Analyses were performed on an intention-to-treat basis, using linear mixed effects models with adjustment for the stratification variables. RESULTS: Women randomised to Lifestyle Advice demonstrated a statistically significant increase in the number of servings of fruit and vegetables consumed per day, as well as increased consumption of fibre, and reduced percentage energy intake from saturated fats (P<0.05 for all). Maternal HEI was significantly improved at both 28 (73.35±6.62 versus 71.86±7.01; adjusted difference in means 1.58; 95% CI 0.89 to 2.27; P<0.0001) and 36 (72.95±6.82 versus 71.17±7.69; adjusted difference in means 1.77; 95% CI 1.01 to 2.53; P<0.0001) weeks. There were no differences in dietary glycaemic index or glycaemic load. Women randomised to Lifestyle Advice also demonstrated greater total physical activity (adjusted difference in means 359.76 metabolic equivalent task units (MET) minutes/week; 95% CI 74.87 to 644.65; P=0.01) compared with women receiving Standard Care. The supervised walking group was poorly utilised. CONCLUSIONS: For women who are overweight or obese, antenatal lifestyle advice improves maternal diet and physical activity during pregnancy. Please see related articles: http://www.biomedcentral.com/1741-7015/12/163 and http://www.biomedcentral.com/1741-7015/12/201. TRIAL REGISTRATION: Australian and New Zealand Clinical Trials Registry ( ACTRN12607000161426).
Language eng
DOI 10.1186/s12916-014-0161-y
Indigenous content off
Field of Research 11 Medical And Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2014, Dodd et al
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30116332

Document type: Journal Article
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.