Effect of different delivery modes on pelvic floor electromyography and muscle strength in early postpartum period
NIE Wei1 LIU Xueyun2 ZHANG Linlin3 HEI Guozhen3
1.Research Department, Shandong Academy of Medical Sciences, Shandong Province, Ji′nan 250000, China;
2.Department of Obstetrics, Shandong Provincial Qianfoshan Hospital, Shandong Province, Ji′nan 250000, China;
3.Department of Obstetrics, Liaocheng Dongchangfu District Maternal and Child Health Hospital, Shandong Province, Liaocheng 252000, China
Abstract：Objective To investigate the effect of different delivery methods on pelvic floor electromyography and muscle strength in early postpartum period. Methods Total of 200 parturients who were examined and delivered in Liaocheng Dongchangfu District Maternal and Child Health Hospital of Shandong Province from June 2015 to October 2018 were selected as the research objects. They were divided into cesarean section group (n = 98) and vaginal delivery group (n = 102), vaginal delivery group was divided into lateral section group (n = 53) and non-lateral section group (n = 49) according to the different modes of delivery. The pelvic floor myoelectricity and muscle strength were compared between cesarean section group and vaginal delivery group, lateral incision group and the non-lateral incision group before delivery, 6, 12 and 20 weeks postpartum. Results The peak value, activity value and velocity value of pelvic floor potential in cesarean section group and vaginal delivery group decreased first and then increased at 6,12 and 20 weeks postpartum (P < 0.05). There was no significant difference in pelvic floor potential activity between cesarean section group and vaginal delivery group at 6 weeks postpartum (P > 0.05). The peak value of pelvic floor muscle potential, pelvic floor muscle activity and pelvic floor velocity at other time points were higher than those in vaginal delivery group (P < 0.05). There was no statistical difference in peak pelvic floor potential, pelvic floor activity and pelvic floor velocity between the two groups (P > 0.05), and the peak pelvic floor potential, pelvic floor activity and pelvic floor velocity of the two groups was lower 6 weeks postpartum than those before delivery (P < 0.05). There was no statistical difference in the decrease rate of muscular strength of type Ⅰ and Ⅱ muscles between cesarean section group, vaginal delivery group and lateral section group and non-lateral section group (P > 0.05). Conclusion The influence of cesarean section and vaginal delivery on the decrease of pelvic floor muscle strength is not different, and lateral incision during vaginal delivery can not reduce the influence of pelvic floor muscle strength after delivery. The effect of cesarean section on pelvic floor EMG in early postpartum period is slight.
聂伟1 刘学云2 张琳琳3 黑国真3. 不同分娩方式对产后早期盆底肌电值及肌力的影响[J]. 中国医药导报, 2019, 16(20): 95-99.
NIE Wei1 LIU Xueyun2 ZHANG Linlin3 HEI Guozhen3. Effect of different delivery modes on pelvic floor electromyography and muscle strength in early postpartum period. 中国医药导报, 2019, 16(20): 95-99.
2019, Vol. 16 
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