Mariano Bacchi1, Michelle F Mottola2,3, Maria Perales4,5, Ignacio Refoyo6, Ruben Barakat6. 1. 1 Faculty of Physical Activity and Sport, Flores University, Argentine. 2. 2 R. Samuel McLaughlin Foundation-Exercise & Pregnancy Laboratory, School of Kinesiology, Faculty of Health Sciences, University of Western Ontario, London, Canada. 3. 3 Department of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Children's Health Research Institute, University of Western Ontario, London, Canada. 4. 4 Research Institute of Hospital 12 de Octubre ("i+12"), Madrid, Spain. 5. 5 Camilo José Cela University, Madrid, Spain. 6. 6 AFIPE Research Group, Technical University of Madrid, Spain.
Abstract
PURPOSE: The aim of the present study was to examine the influence of a supervised and regular program of aquatic activities throughout gestation on maternal weight gain and birth weight. DESIGN: A randomized clinical trial. SETTING: Instituto de Obstetricia, Ginecología y Fertilidad Ghisoni (Buenos Aires, Argentina). PARTICIPANTS: One hundred eleven pregnant women were analyzed (31.6 ± 3.8 years). All women had uncomplicated and singleton pregnancies; 49 were allocated to the exercise group (EG) and 62 to the control group (CG). INTERVENTION: The intervention program consisted of 3 weekly sessions of aerobic and resistance aquatic activities from weeks 10 to 12 until weeks 38 to 39 of gestation. MEASURES: Maternal weight gain, birth weight, and other maternal and fetal outcomes were obtained by hospital records. ANALYSIS: Student unpaired t test and χ2 test were used; P values ≤.05 indicated statistical significance. Cohen's d was used to determinate the effect size. RESULTS: There was a higher percentage of women with excessive maternal weight gain in the CG (45.2%; n = 28) than in the EG (24.5%; n = 12; odds ratio = 0.39; 95% confidence interval: 0.17-0.89; P = .02). Birth weight and other pregnancy outcomes showed no differences between groups. CONCLUSION: Three weekly sessions of water activities throughout pregnancy prevents excessive maternal weight gain and preserves birth weight. TRIAL REGISTRATION: The clinicaltrial.gov identifier: NCT 02602106.
RCT Entities:
PURPOSE: The aim of the present study was to examine the influence of a supervised and regular program of aquatic activities throughout gestation on maternal weight gain and birth weight. DESIGN: A randomized clinical trial. SETTING: Instituto de Obstetricia, Ginecología y Fertilidad Ghisoni (Buenos Aires, Argentina). PARTICIPANTS: One hundred eleven pregnant women were analyzed (31.6 ± 3.8 years). All women had uncomplicated and singleton pregnancies; 49 were allocated to the exercise group (EG) and 62 to the control group (CG). INTERVENTION: The intervention program consisted of 3 weekly sessions of aerobic and resistance aquatic activities from weeks 10 to 12 until weeks 38 to 39 of gestation. MEASURES: Maternal weight gain, birth weight, and other maternal and fetal outcomes were obtained by hospital records. ANALYSIS: Student unpaired t test and χ2 test were used; P values ≤.05 indicated statistical significance. Cohen's d was used to determinate the effect size. RESULTS: There was a higher percentage of women with excessive maternal weight gain in the CG (45.2%; n = 28) than in the EG (24.5%; n = 12; odds ratio = 0.39; 95% confidence interval: 0.17-0.89; P = .02). Birth weight and other pregnancy outcomes showed no differences between groups. CONCLUSION: Three weekly sessions of water activities throughout pregnancy prevents excessive maternal weight gain and preserves birth weight. TRIAL REGISTRATION: The clinicaltrial.gov identifier: NCT 02602106.
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