脑卒中偏瘫步态分析的临床应用

摘要

Objective To explore the characteristics of hemiparetic gait for stroke patients. Methods 49 stroke patients were allocated to two groups:experimental group (n=33) received 3D-video gait analysis, and control group (n=16) received the gait analysis with ankle-foot orthosis (AFO). The kinematic parameters were compared between two groups, and the experimental group with normal gaits. Results Com-pared with the normal gaits, the step, stride, step frequency, gait velocity, and the percentage single support in gait cycle decreased signifi-cantly, and gait width, and the percentage in gait cycle of double support increased significantly in the experimental group (P<0.01). There was no significant difference in kinematic parameters beween the experimental group and the control group (P>0.05). Conclusion The ma-jor kinematic characteristics of hemiparetic gait are slow velocity, long cycle, relative decrease of single support of weak limb, and increase of double support.%　　目的研究脑卒中偏瘫患者的步态特点。方法49例脑卒中偏瘫患者分成两组，其中观察组33例，不佩戴矫形器，裸足进行三维视频步态分析，与健康成年人步态参数进行比较；对照组16例，佩戴固定式踝足矫形器(AFO)进行步态分析，与观察组比较。结果与正常人相比，观察组步长、跨步长、步频明显减小，步宽增大，步速减慢；步态周期延长，其中双腿支撑期时间和所占步态周期比例明显延长，单腿支撑期所占步态周期比例明显缩短(P<0.01)；偏瘫患者是否应用AFO，步态运动学参数无显著性差异(P>0.05)。结论脑卒中偏瘫患者步速慢、步态周期延长、双腿支撑期比例延长、单腿支撑期比例缩短是其主要运动学特点。