模仿运动对慢性期脑卒中偏瘫患者手指活动度的影响

Effect of Motor Imitation Training on Finger Movement of Chronic Stroke Patients

目的:探讨模仿运动训练对偏瘫患者手指运动机能的即时效果。方法:采用自身交叉对照设计,10例慢性期脑卒中偏瘫患者先后进行模仿运动条件和对照条件的试验,模仿条件为观察他人的手指集团屈曲伸展全关节活动度的视频,要求患者努力模仿同样动作。对照条件患者只观察自己的手,按照与模仿运动相同的指令进行手指屈伸运动。采用电子角度计实时记录患者第2掌指关节角度,分析每次运动的主动活动范围(AROM)、最大伸展角度和最大屈曲角度。同时计算2条件的AROM差值。结果:模仿条件的AROM明显比对照条件大。模仿条件的最大伸展角度有比对照条件大的趋势,而最大屈曲角度2条件无明显差异。对照条件的最大伸展角度与2条件AROM差值存在正相关。结论:模仿运动训练对慢性期偏瘫患者手指的屈伸运动有促进作用。

Objective:To investigate the instant effect of motor imitation training on finger movement of chronic stroke patients.Methods:The cross-over control design was used and tests of imitation condition and control condition were conducted on 10 chronic stroke patients with hemiplegia successively. In imitation condition, patients were asked to imitate the model activity in the video,which was a flexor and extensor movement of fingers. In control condition, subjects were asked to extend and flex their own finger at a same rhythm. The electronic angle gauge was used to record the active flexion-extension movement(AROM) range, the largest stretching angle and maximum flexion angle of the second metacarpal joint. The AROM difference between the two conditions was also calculated. Results:The AROM of patients in the imitation condition was significantly higher than that in the control condition.The maximum extension angle of the imitation condition was significantly larger than that of the control condition, while no significant difference of the maximum flexion angle was found between the two conditions. The maximum extension angle of the control condition was positively correlated with the AROM difference between the two conditions. Conclusion:The motor imitation training is effective for the recovery of flexor and extensor movement of the fingers of chronic stroke patients with finger dysfunction.