Impact of physical activity during pregnancy on infant neurodevelopment.

Objectives: To investigate prospectively the impact of physical activity during pregnancy on infant neurodevelopment, considering relevant confounding factors, physical activity intensity and the trimester of pregnancy in which it is performed.

Methods: Prospective follow-up study of 791 pregnant women from the first trimester of pregnancy to 40 days postpartum. Three intensity levels of physical activity were assessed in each trimester of pregnancy by the International Physical Activity Questionnaire (IPAQ).