Physical activities foster normal human growth and development. Exercising is associated with improved mental health and reduces the risk of a large number of chronic diseases. Under the guidelines of Centers for Disease Control and Prevention, pregnant mother should engage in moderate-intensity aerobic
activity for at least 150 minutes per week. In addition, Body Mass Index (BMI) has shown considerable impact on various metabolic and disease outcomes. However, the reports on mother’s physical activities during pregnancy and postpartum are limited. Therefore, the goal of this proposal is to investigate the associations between mother’s BMI and physical exercise during period of pregnancy and postpartum maternal and infant health outcomes.