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目的:探讨通过表面肌电信号(sEMG)的检测来研究产后盆底功能障碍性疾病(PFD)患者的肌电压变化及临床价值。方法:选择患有盆底功能障碍性疾病的产妇150例根据是否伴有压力性尿失禁(SUI)分组,并随机选择同期无症状产妇50例作为正常对照组,采用Glazer评估法测试表面肌电压。结果:sEMG测试显示研究组快速收缩、持续性收缩及耐力测试的肌电压值低于对照组,各组持续性收缩值均低于快速收缩肌电压值。研究组的募集时间及变异系数均高于对照组,伴随压力性尿失禁症状的研究组募集时间延长。结论:PFD患者的盆底肌表面肌电信号明显低于正常对照组,SUI与盆底肌肉反应速度下降有关。
Objective: To investigate the changes of myoelectricity and clinical value of postpartum pelvic floor dysfunction (PFD) patients by detecting the surface electromyography signal (sEMG). Methods: 150 maternal women with pelvic floor dysfunction were selected according to whether they had SUI or not, and 50 asymptomatic maternity women were randomly selected as normal control group. Glazer assessment was used to test the surface myoelectricity . Results: The sEMG test showed that the study group rapid contraction, sustained contraction and endurance test lower than the control group, the sustained contraction values were lower than the rapid contraction of the muscle voltage. The recruiting time and coefficient of variation in the study group were higher than those in the control group, and the study group with stress urinary incontinence had longer recruitment time. CONCLUSIONS: The EMG of pelvic floor muscles in patients with PFD is significantly lower than that in normal control group, and the SUI is related to the decrease of pelvic floor muscle reaction rate.