在神经肌肉疾病,研究尿液动力学时必须做尿道横纹肌肌电图(EMG)检查。用EMG 技术记录尿道横纹肌活动基于电位的采样,所用电极有针状电极、阴道或肛门塞状电极、会阴表面电极或尿道环状电极.在女性,针状电极在薄的壁内横纹肌里难以精确定位并易引起疼痛;针状与塞状电极可引起不适,且改变姿势时易松动或脱离;肛塞电极可刺激会阴肌,有可能抑制逼尿肌反射活动;尿道环状电 In neuromuscular diseases, urethral striated muscle EMG examination must be done when studying urodynamics. Electrokinetic sampling of the urethral striated muscle activity was performed using the EMG technique with needle electrodes, vaginal or anal plug electrodes, perineal surface electrodes, or urethral ring electrodes. In women, the needle electrodes are difficult to pinpoint in thin wall striated muscles Positioning and easy to cause pain; acupuncture and plug electrodes can cause discomfort, and easy to change posture or loose; anal plug electrode can stimulate perineal muscle, may inhibit detrusor reflex activity; urethral ring electrical