Winchester P, Montgomery J, Bowman B, Hislop H
Phys Ther. 1983 Jul;63(7):1096-103. doi: 10.1093/ptj/63.7.1096.
Positional feedback stimulation training and cyclical electrical stimulation were used in combination as a treatment for facilitating knee extension in hemiparetic patients. Forty adult hemiparetic patients who demonstrated minimal active control of their quadriceps femoris muscles were randomly assigned to control or study groups. The control patients received a program of physical therapy, and the study patients received the positional feedback stimulation training in addition to their therapy program. The stimulation training provided the patient with immediate auditory and visual feedback of his changing joint angle while he voluntarily extended his knee. When the patient reached a near maximal extension effort, electrical stimulation of the quadriceps femoris muscle was automatically triggered, completing the patient's available range of motion in extension. The stimulation training was supplemented with two hours of cyclical electrical stimulation daily. At the end of four weeks, analysis revealed a statistically significant increase in knee extension torque and active synergistic range of motion in the study group. No change was noted in their ability to extend their knees using isolated quadriceps femoris muscle control. This study suggests that positional feedback stimulation training is effective when used to augment a facilitation program for improving knee extension control in hemiparetic patients.
位置反馈刺激训练和周期性电刺激相结合，用于促进偏瘫患者的膝关节伸展。40名对股四头肌主动控制能力最弱的成年偏瘫患者被随机分配到对照组或研究组。对照组患者接受物理治疗方案，研究组患者除治疗方案外，还接受位置反馈刺激训练。刺激训练在患者主动伸展膝关节时，为其提供关节角度变化的即时听觉和视觉反馈。当患者接近最大伸展力时，股四头肌的电刺激会自动触发，完成患者在伸展时的可用运动范围。刺激训练每天辅以两小时的周期性电刺激。四周结束时，分析显示研究组的膝关节伸展扭矩和主动协同运动范围有统计学意义的增加。在使用孤立的股四头肌控制伸展膝关节的能力方面未观察到变化。这项研究表明，位置反馈刺激训练用于增强促进方案以改善偏瘫患者的膝关节伸展控制时是有效的。
