下肢外骨骼康复机器人对偏瘫患者步态参数的影响

关键词：偏瘫  步态时空参数  下肢外骨骼康复机器人  不对称性评估

Keywords:hemiplegic  spatiotemporal gait parameters  lower limb exoskeleton gait rehabilitation robot  gait asymmetry assessment

摘要：

      摘要 目的：探索下肢外骨骼康复机器人对偏瘫患者步态时空参数的影响。 方法：选取偏瘫患者30例，机器人组：15例患者除日常训练外还需每日穿戴外骨骼机器人训练1h，对照组：15例患者进行日常康复训练。从两种角度对患者步态及康复效果进行分析：一是利用SPSS软件对机器人组患者的助力等级数据进行分析，通过配对样本t检验的方法比较患者首末次的康复状态。二是采用IDEEA?运动捕捉系统对包括步速、步频、步行周期等步态时空参数进行采集，分析患者首末次评估的数据差异。 结果：与不穿下肢外骨骼机器人行走相比，机器人组患侧助力等级明显降低，步速明显变快，支撑相时间明显减短，具有显著性差异（P＜0.05）。 结论：下肢外骨骼康复机器人能够有效改善偏瘫患者步态。

Abstract:

      Abstract Objective： To explore the effect of a gait rehabilitation robot on spatiotemporal gait asymmetry of hemiplegic patient. Method： Thirty unilateral-hemiplegic patients were recruited. For experimental group， the 15 patients wearing a gait rehabilitation robot walked 10 meters on a flat ground. For control group， the 15 patients walked 10 meters on a flat ground without the robot. The main spatiotemporal gait parameters including step speed， step length， step width， stance time， swing time， were acquired via an optical motion capture system. The spatiotemporal gait asymmetry was calculated by asymmetry ratio. Result： Compared with the walking without the exoskeleton， in experimental group， the step length was larger， the stance time became shorter， the swing time became longer， and asymmetry was weakened. Difference has statistical significance(P<0.05). Conclusion： Lower limb exoskeleton can significantly improve asymmetrical gait of hemiplegic patient with stroke.