Maternal physical activity prior to and during pregnancy does not moderate the relationship between maternal body mass index and infant macrosomia

摘要

Objectives: Maternal body mass index (BMI) is a significant determinant of infant macrosomia. Given the strong metabolic effects of physical activity (PA), independent of body mass, it is unclear as to whether maternal PA may affect the risk of delivering a macrosomic infant. Thus, the purpose of this study was to determine if maternal PA moderates the relationship between maternal BMI and infant macrosomia.