孕期体力活动对分娩方式的影响研究

目的:探索孕期体力活动对分娩方式的影响。方法:在孕中期招募孕妇,跟踪随访至分娩。在分娩前把研究人群按孕中期、孕晚期的记步器读数分成不同体力活动活跃程度的4组,分析体力活动不同组分娩方式即阴道分娩与剖宫产率的差异。结果:在866名孕妇中,剖宫产596名,剖宫产率为68.8%,选择性剖宫产率为51.4%。就孕中、晚期平均的体力活动量而言,低活跃组、较活跃组和活跃组发生剖宫产的风险分别是静坐组的0.60、0.30、0.23倍,发生选择性剖宫产的风险分别是静坐组的0.57、0.32、0.20倍。结论:该研究提示孕期体力活动活跃者剖宫产或选择性剖宫产率降低。

Study on effect of gestational physical activities on delivery modes

Objective: To explore the effect of gestational physical activities on delivery modes.Methods: The pregnant women during the second trimester of pregnancy were recruited and followed up until delivery.Before delivery,the study objects were divided into four groups according to the indication of steps-teller,the differences of vaginal delivery rates and cesarean section rates in the four groups were analyzed.Results: Among 866 pregnant women,596 pregnant women gave birth to their babies via cesarean section,the rate of cesarean section was 68.8%,and the rate of selective cesarean section was 51.4%.As far as average physical activities during the second and the third trimesters of pregnancy,the risk ratios of cesarean section in low-active group,relative-active group and active group were 0.60,0.30 and 0.23 times more than that in sit-downstrike group,and the risk ratios of selective cesarean section in low-active group,relative-active group and active group were 0.57,0.32 and 0.20 times more than that in sit-downstrike group.Conclusion: The study indicates that cesarean section rate or selective cesarean section rate in pregnant women having active physical activities decreases.