Impact of Acute Exercise and Habitual Physical Activity on Human Milk Composition and Childhood Obesity Risk
The purpose of this study is to learn how exercise and physical activity during pregnancy and after pregnancy may affect the composition of breastmilk. Certain changes in breast milk after exercise may have an impact on how infants use energy. Understanding this process may improve public health recommendations for exercise during and after pregnancy. This study can help investigators learn more about how maternal exercise patterns may affect body growth and obesity risk in infants who are breastfed. This research may help identify how different factors can influence healthy weight and early development in infants.
• 18-45 y of age at the time of enrollment
• Pre-gravid or first trimester BMI 18.5 -40 kg/m2
• Uncomplicated singleton pregnancy
• Intention to exclusively breastfeed for \>3 months and, if parity \>1, that they successfully breastfed a previous pregnancy
• Term pregnancy (gestational age 37 to \<42 weeks)
• Infant with birth weight \>10th percentile of weight for gestational age