At 4 and 6 months, mean daily time spent while awake in the prone position and exposure to supported sitting position were significantly correlated with AIMS scores and Peabody Developmental Motor Score gross motor quotient.

• 在4或6个月大的时候，平均每天花费在醒时俯姿或有支撑坐姿的时间与AIMS积分和皮博迪发展运动积分中粗大运动积分商显著相关。