Fig. 3.

Association between maternal physical activity during pregnancy and infant's birth weight—moderate levels of physical activity. (3.1) Results from studies providing crude results only, based on activity volume. (3.2) Results from studies providing adjusted results, based on activity volume. (3.3) Results from studies based on intensity. ^aThis study mentioned nonsignificant adjusted results without providing estimates. ^bThis study compared light intensity activity with no activity. BW, birth weight; PA, physical activity.