Effects of a Lifestyle Intervention During Pregnancy to Prevent Excessive Gestational Weight Gain in Routine Care - the Cluster-randomised GeliS Trial
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Background: Excessive gestational weight gain (GWG) leads to obstetric complications, maternal postpartum weight retention and an increased risk of offspring obesity. The GeliS study examines the effect of a lifestyle intervention during pregnancy on the proportion of women with excessive GWG and pregnancy and obstetric complications, as well as the long-term risk of maternal and infant obesity.
Methods: The GeliS study is a cluster-randomised multicentre controlled trial including 2286 women with a pre-pregnancy BMI between 18.5 and 40.0 kg/m recruited from gynaecological and midwifery practices prior to the end of the 12 week of gestation in five Bavarian regions. In the intervention regions, four lifestyle counselling sessions covering a balanced healthy diet, regular physical activity and self-monitoring of weight gain were performed by trained healthcare providers alongside routine pre- and postnatal practice visits. In the control regions, leaflets with general recommendations for a healthy lifestyle during pregnancy were provided.
Results: The intervention did not result in a significant reduction of women showing excessive GWG (adjusted OR 0.95, 95% CI 0.66-1.38, p = 0.789), with 45.1% and 45.7% of women in the intervention and control groups, respectively, gaining weight above the Institute of Medicine recommendations. Gestational diabetes mellitus was diagnosed in 10.8% and 11.1% of women in the intervention and control groups, respectively (p = 0.622). Mean birth weight and length were slightly lower in the intervention group (3313 ± 536 g vs. 3363 ± 498 g, p = 0.020; 51.1 ± 2.7 cm vs. 51.6 ± 2.5 cm, p = 0.001).
Conclusion: In the setting of routine prenatal care, lifestyle advice given by trained healthcare providers was not successful in limiting GWG and pregnancy complications. Nevertheless, the potential long-term effects of the intervention remain to be assessed.
Trial Registration: NCT01958307 , ClinicalTrials.gov, retrospectively registered October 9, 2013.
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Geyer K, Raab R, Spies M, Knoke J, Meyer D, Brandt-Heunemann S Pediatr Res. 2025; .
PMID: 39979584 DOI: 10.1038/s41390-025-03936-y.
Wang L, Zou L, Yi H, Li T, Zhou R, Yang J BMC Pregnancy Childbirth. 2024; 24(1):516.
PMID: 39080659 PMC: 11289958. DOI: 10.1186/s12884-024-06699-2.
Fong M, Kenny R, Thomson K, Jesurasa A, Lavans A, Patterson M Front Public Health. 2024; 12:1359680.
PMID: 38605879 PMC: 11008719. DOI: 10.3389/fpubh.2024.1359680.
Mavroeidi I, Manta A, Asimakopoulou A, Syrigos A, Paschou S, Vlachaki E Nutrients. 2024; 16(3).
PMID: 38337683 PMC: 10857473. DOI: 10.3390/nu16030399.
Dickert J, Mbang Springer D, von Kaisenberg C, Hillemanns P, de Zwaan M, Brodowski L Obes Facts. 2023; 16(6):576-587.
PMID: 37647859 PMC: 10697741. DOI: 10.1159/000533276.