A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity

Abstract Background There is evidence that exercise may reduce the risk of gestational diabetes mellitus (GDM) and improve other obstetric outcomes in overweight or obese pregnant women. However, the available evidence is of low quality and inconclusive. The purpose of this study is to assess the ef...

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Main Authors: Teresa E. Santa Cruz, Cristina Sarasqueta, Juan Carlos Muruzábal, Eukene Ansuategui, Olga Sanz
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Pregnancy and Childbirth
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Online Access:https://doi.org/10.1186/s12884-024-07021-w
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author Teresa E. Santa Cruz
Cristina Sarasqueta
Juan Carlos Muruzábal
Eukene Ansuategui
Olga Sanz
author_facet Teresa E. Santa Cruz
Cristina Sarasqueta
Juan Carlos Muruzábal
Eukene Ansuategui
Olga Sanz
author_sort Teresa E. Santa Cruz
collection DOAJ
description Abstract Background There is evidence that exercise may reduce the risk of gestational diabetes mellitus (GDM) and improve other obstetric outcomes in overweight or obese pregnant women. However, the available evidence is of low quality and inconclusive. The purpose of this study is to assess the effects of exercise, compared with usual care, in reducing GDM and other obstetric risks, in overweight and obese pregnant women. Methods We searched MEDLINE, Embase, and the Cochrane Library from their inception dates up to August 2022. Randomised studies comparing physical exercise versus routine obstetric care in pregnant women with overweight or obesity (BMI ≥ 25.0). Each abstract and full-text article was independently reviewed by the same two authors. The primary outcome was the incidence of GDM, and the secondary outcomes were excessive weight gain, preterm delivery, and foetal macrosomia. Summary risk ratios (RRs) and 95% confidence intervals (CIs) were calculated. Main Results. Seven studies covering 1162 patients were identified. Exercise did not reduce the risk of GDM: RR, 0.82 [95% CI, (0.58–1.17)] but subgroup analysis shows a significant benefit among patients adhering to the programs: RR, 0.56 [95% CI, (0.40–0.78)] and no effect among non-adherents: RR, 1.11 [95% CI, (0.82–1.50)]. We did not find a significant effect on excessive weight gain: RR, 0.92 [95% CI, (0.76–1.11)] but there was a reduction in the risk of foetal macrosomia: RR, 0.5 [95% CI, (0.32–0.79)]. Exercise has not been associated with an increased risk of preterm birth: RR, 0.79 [95% CI, (0.44–1.39)]. Conclusions The present study does not allow us to conclude that structured exercise programs for pregnant women with overweight or obesity leads to a reduction in the risk of gestational diabetes. When exercise program adherence is high, a significant reduction of GDM is observed. These findings will need to be confirmed with large primary trials. A reduction in the incidence of foetal macrosomia has also been observed. Trial registration This study was registered in the International Prospective Register of Systematic Reviews (PROSPERO; identifier: CRD42023399004).
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spelling doaj-art-17efec099fdb4ab1b80d38e50074eb2a2025-08-20T02:46:00ZengBMCBMC Pregnancy and Childbirth1471-23932025-01-0125111110.1186/s12884-024-07021-wA systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesityTeresa E. Santa Cruz0Cristina Sarasqueta1Juan Carlos Muruzábal2Eukene Ansuategui3Olga Sanz4Department of Gynecology and Obstetrics, Navarra University HospitalDepartment of Clinical Epidemiology, Donostia University HospitalDepartment of Gynecology and Obstetrics, Navarra University HospitalBiogipuzkoa Health Research InstituteDepartment of Gynecology and Obstetrics, Reina Sofía HospitalAbstract Background There is evidence that exercise may reduce the risk of gestational diabetes mellitus (GDM) and improve other obstetric outcomes in overweight or obese pregnant women. However, the available evidence is of low quality and inconclusive. The purpose of this study is to assess the effects of exercise, compared with usual care, in reducing GDM and other obstetric risks, in overweight and obese pregnant women. Methods We searched MEDLINE, Embase, and the Cochrane Library from their inception dates up to August 2022. Randomised studies comparing physical exercise versus routine obstetric care in pregnant women with overweight or obesity (BMI ≥ 25.0). Each abstract and full-text article was independently reviewed by the same two authors. The primary outcome was the incidence of GDM, and the secondary outcomes were excessive weight gain, preterm delivery, and foetal macrosomia. Summary risk ratios (RRs) and 95% confidence intervals (CIs) were calculated. Main Results. Seven studies covering 1162 patients were identified. Exercise did not reduce the risk of GDM: RR, 0.82 [95% CI, (0.58–1.17)] but subgroup analysis shows a significant benefit among patients adhering to the programs: RR, 0.56 [95% CI, (0.40–0.78)] and no effect among non-adherents: RR, 1.11 [95% CI, (0.82–1.50)]. We did not find a significant effect on excessive weight gain: RR, 0.92 [95% CI, (0.76–1.11)] but there was a reduction in the risk of foetal macrosomia: RR, 0.5 [95% CI, (0.32–0.79)]. Exercise has not been associated with an increased risk of preterm birth: RR, 0.79 [95% CI, (0.44–1.39)]. Conclusions The present study does not allow us to conclude that structured exercise programs for pregnant women with overweight or obesity leads to a reduction in the risk of gestational diabetes. When exercise program adherence is high, a significant reduction of GDM is observed. These findings will need to be confirmed with large primary trials. A reduction in the incidence of foetal macrosomia has also been observed. Trial registration This study was registered in the International Prospective Register of Systematic Reviews (PROSPERO; identifier: CRD42023399004).https://doi.org/10.1186/s12884-024-07021-wGestational diabetesExerciseAdherenceObesityOverweightPregnant women
spellingShingle Teresa E. Santa Cruz
Cristina Sarasqueta
Juan Carlos Muruzábal
Eukene Ansuategui
Olga Sanz
A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
BMC Pregnancy and Childbirth
Gestational diabetes
Exercise
Adherence
Obesity
Overweight
Pregnant women
title A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
title_full A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
title_fullStr A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
title_full_unstemmed A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
title_short A systematic review and meta-analysis of exercise-based intervention to prevent gestational diabetes in women with overweight or obesity
title_sort systematic review and meta analysis of exercise based intervention to prevent gestational diabetes in women with overweight or obesity
topic Gestational diabetes
Exercise
Adherence
Obesity
Overweight
Pregnant women
url https://doi.org/10.1186/s12884-024-07021-w
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