Excessive maternal weight gain during pregnancy Pregnancy and Childbirth Excessive weight gain in pregnancy
Conditions
Interventions
Participants are recruited from obstetric clinics in central Iowa. Randomization is blinded to researchers and participants until after completion of baseline data collection. Participants are randomi
however, they also utilize the interactive portion of the website. Additionally, these participants are asked to walk 30 minutes a day, 5 days a week for a total of 150 minutes of moderately intense
Sponsors
Individual sponsor (USA)
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Healthy pregnant women between the ages of 18-45 years old living in the communities in and around Ames, Iowa with regular internet access 2. All women enrolled in the study are low active, defined as less than three intentional bouts of 30 minutes of moderately intense physical activity per week for at least 6 months prior to conception 3. If asked, women must be willing to walk 30 minutes on most days of the week throughout pregnancy
Exclusion criteria
Exclusion criteria: 1. Smoking during pregnancy 2. A non-singleton pregnancy 3. A history of chronic disease (e.g., type 1 diabetes, cardiovascular disease, untreated thyroid condition) 4. Any other disease or use of medication known to influence overall metabolism 5. Underweight prior to pregnancy (BMI < 18.5 kg/m2) 6. Inability to communicate due to language or mental status
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Gestational weight gain was measured at baseline (10-14 weeks gestation), week 22-24 gestation, and week 34-36 gestation. Total gestational weight gain (to the nearest 0.1 kg) was defined as the last weight measured by the research staff between 34-36 weeks gestation minus self-reported pre-pregnancy weight. Pre-pregnancy weight was self-reported at enrollment. Excessive gestational weight gain was defined using the 2009 Institute of Medicine recommendations for total and weekly weight gain recommendations based on maternal pre-pregnancy BMI. 2. Infant body composition: measured at 4 weeks of age via air displacement plethysmography (Pea Pod; Life Measurement Inc., Concord, CA) | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Maternal self-efficacy: assessed via validated surveys at baseline (10-14 weeks gestation), week 22-24 gestation, week 34-36 gestation, and 1-month postpartum 2. Maternal adherence to prenatal physical activity recommendations: assessed via objective physical activity monitoring (SenseWear®Mini armband) at baseline (10-14 weeks gestation), week 22-24 gestation, and week 34-36 gestation 3. Maternal insulin resistance: assessed via fasting blood glucose, insulin and a 1-hour 75 g oral glucose tolerance test between 24-26 weeks gestation 4. Infant birth outcomes: birth weight, length, head circumference, and APGAR scores (1 and 5 minutes post-delivery) obtained from the medical birth record | — |
Countries
United States of America
Outcome results
None listed