目的 探讨分娩球运动用于纠正 34 周后臀位产妇的可行性和安全性，并分析其成功率的影 响因素，为提高分娩球纠正臀位的成功率提供理论依据。方法 选取 2020 年 9 月至 2022 年 3 月期间进行 分娩球运动纠正臀位产妇的资料，收集患者的一般资料和分娩球运动期间相关信息，统计纠正成功率、分 娩球运动耗时、不良事件发生率，评价其可行性和安全性。分析纠正成功率的影响因素，使用单因素分析 方法确定各因素是否为纠正成功率的影响因素，使用 logistic 回归分析检验以上因素是否为纠正成功率的 独立影响因素。结果 本研究共纳入 157 例研究对象，其中成功纠正 87 例，成功率为 55.4%。平均运动时 常（109.77 ± 19.60）min；未发生早产、胎膜早破、胎儿宫内窘迫等不良反应。孕产史、羊水量是纠正臀位成 功率的主要影响因素。结论 孕 34 周后应用分娩球运动纠臀位具有可行性，效果理想，运动耗时适中，安全性高；孕产史、羊水量是纠正臀位成功率的主要影响因素。

Objective To explore the feasibility and safety of the delivery ball exercise for correcting breech presentation in women after 34 weeks，and to analyze the factors that affect the success rate，so as to pro⁃ vide a theoretical basis for improving the success rate of delivery ball correction for breech presentation. Methods The data of pregnant women who performed delivery ball exercise to correct breech position from September 2020 to March 2022 was selected. The general data of patients and relevant information during delivery ball movement were collected，and the correction success rate，delivery ball movement time，and adverse events were counted to evalu⁃ ate its feasibility and safety. The influencing factors of the correction success rate were analyzed，and univariate analysis was used to determine whether each factor was an influencing factor of the correction success rate. Logistic regression analysis was used to test whether the above factors were independent influencing factors of the correction success rate. Results A total of 157 subjects were included in this study，of which 87 were successfully corrected， with a success rate of 55.4%. The average exercise time was（109.77 ± 19.60）minutes；no adverse reactions such as premature birth，premature rupture of membranes and fetal distress occurred. Maternity history and amniotic fluid volume are the main factors affecting the success rate of correcting breech presentation. Conclusion After 34 weeks of gestation，it is feasible and effective to apply delivery ball exercise to correct breech position，with moder⁃ ate exercise time and high safety. Pregnancy history and amniotic fluid volume are the main factors affecting the success rate of correcting breech position.