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Diet or exercise, or both, for weight reduction in women after childbirth

Diet or exercise, or both, for weight reduction in women after childbirth

Adegboye, Amanda R. Amorim ORCID: 0000-0003-2780-0350 and Linne, Yvonne M. (2013) Diet or exercise, or both, for weight reduction in women after childbirth. Cochrane Database of Systematic Reviews (7). ISSN 1465-1858 (Print), 1469-493X (Online) (doi:https://doi.org/10.1002/14651858.CD005627.pub3)

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Abstract

Background:
Weight retention after pregnancy may contribute to obesity. It is known that diet and exercise are recommended components of any weight loss programme in the general population. However, strategies to achieve healthy body weight among postpartum women have not been adequately evaluated.

Objectives:
The objectives of this review were to evaluate the effect of diet, exercise or both for weight reduction in women after childbirth, and to assess the impact of these interventions on maternal body composition, cardiorespiratory fitness, breastfeeding performance and other child and maternal outcomes.:

Search methods:
We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 January 2012) and LILACS (31 January 2012). We scanned secondary references and contacted experts in the field. We updated the search of the Cochrane Pregnancy and Childbirth Group's Trials Register on 30 April 2013 and added the results to the awaiting classification section of the review.

Selection criteria:
All published and unpublished randomised controlled trials (RCTs) and quasi‐randomised trials of diet or exercise or both, among women during the postpartum period.

Data collection and analysis:
Both review authors independently assessed trial quality and extracted data. Results are presented using risk ratio (RR) for categorical data and mean difference (MD) for continuous data. Data were analysed with a fixed‐effect model. A random‐effects model was used in the presence of heterogeneity.

Main results:
Fourteen trials were included, but only 12 trials involving 910 women contributed data to outcome analysis. Women who exercised did not lose significantly more weight than women in the usual care group (two trials; n = 53; MD ‐0.10 kg; 95% confidence interval (CI) ‐1.90 to 1.71). Women who took part in a diet (one trial; n = 45; MD ‐1.70 kg; 95% CI ‐2.08 to ‐1.32), or diet plus exercise programme (seven trials; n = 573; MD ‐1.93 kg; 95% CI ‐2.96 to ‐0.89; random‐effects, T² = 1.09, I² = 71%), lost significantly more weight than women in the usual care group. There was no difference in the magnitude of weight loss between diet alone and diet plus exercise group (one trial; n = 43; MD 0.30 kg; 95% CI ‐0.06 to 0.66). The interventions seemed not to affect breastfeeding performance adversely.

Authors' conclusions:
Evidence from this review suggests that both diet and exercise together and diet alone help women to lose weight after childbirth. Nevertheless, it may be preferable to lose weight through a combination of diet and exercise as this improves maternal cardiorespiratory fitness and preserves fat‐free mass, while diet alone reduces fat‐free mass. This needs confirmation in large trials of high methodological quality. For women who are breastfeeding, more evidence is required to confirm whether diet or exercise, or both, is not detrimental for either mother or baby.

Item Type: Article
Uncontrolled Keywords: weight management, childbirth, diet and exercise
Faculty / Department / Research Group: Faculty of Education & Health
Faculty of Education & Health > Department of Psychology, Social Work & Counselling
Faculty of Education & Health > Health & Society Research Group
Last Modified: 15 Jan 2019 11:34
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/22779

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