目的 探究俯卧位时间对婴儿运动发育的影响。方法 选取3~11月龄的婴儿，统计婴儿每日俯卧位时间， 并采用Peabody运动发育量表进行评估。结果 纳入152例婴儿，其中对照组43例（俯卧时间<30分钟），俯卧组109例（俯 卧时间≥30分钟）；俯卧组中再分为30分钟组（30 ~ 59分钟）、60分钟组（60 ~ 119分钟）和120分钟组（120 ~ 180分钟）。对 照组与不同俯卧组之间PDGMS-2各项运动得分以及GMQ差异均有统计学意义（P<0.05）。结论 婴儿俯卧位有助于运动发育，建议每日30分钟 以上俯卧时间。

Objective To investigate the effect of prone time on motor development in infants. Methods The infants aged 3 to 11 months old were evaluated using the Peabody motor scales and their prone time per day was collected. Results 152 infants were enrolled. There were 43 cases in control group (prone time <0.05). Conclusions Prone time in infants was significantly correlated with gross motor development. Parents should be encouraged to interact with their babies in the prone position during waking hours.