关键词: 阴道静息压, 阴道收缩压, I类肌纤维强度, II类肌纤维强度, 阴道收缩持续时间

Abstract: Objective To analyze the effects of liberal intrapartum postures on the pelvic floor function of postpartum. Methods 610 pregnant women (vaginal delivery,single birth,and head position) were classified and analyzed in Guangzhou Women and Children Medical Center from March 2015 to March 2016. All the pregnant women were mature without pregnancy complications; 298 pregnant women who adopted free posture delivery were selected as observation group,312 pregnant women who adopted traditional posture delivery were selected as control group. We counted the number of perineal injury incidence of the two group,and the pelvic floor strength of the two groups was measured after fetal birth after 6 to 8 weeks. Results We compared the vaginal resting pressure(VRP),vaginal squeezing pressure(VSP),classⅠfiber strength, class Ⅱ fiber strength and the time of vaginal contraction between the two groups. Pelvic floor muscle strength was significantly stronger in the observation group than that in the control group (P<0. 05). Conclusion There is a closely association between the different intrapartum postures and the pelvic floor function of postpartum. Adopting free posture delivery has no adverse impact on pelvic floor function of postpartum, which can protect the function of female pelvic floor.

Key words: Vaginal resting pressure(VRP), Vaginal squeezing pressure(VSP), ClassⅠfiber strength, Class Ⅱ fiber strength, The time of vaginal contraction