明东，万柏坤，胡勇，梁智仁.评估功能性电刺激治疗截瘫患者行走效率的三维重心动态图[J].中华物理医学与康复杂志,2004,(8):
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| 评估功能性电刺激治疗截瘫患者行走效率的三维重心动态图 |
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| DOI： |
| 中文关键词: 功能性电刺激 截瘫 三维重心动态图 步行器 上躯干力学模型 |
| 英文关键词: Functional electrical stimulation Paraplegic 3-D CG motion map Walker Upper body mechanical model |
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| 中文摘要: |
| 目的研究功能性电刺激（functional electrical stimulation， FES）治疗截瘫患者行走效率的评估方法。 方法介绍一种用三维重心动态图来评估FES治疗截瘫患者行走效率的新方法。其主要构件是一套基于标准步行器的测试系统，该系统可以实时获得上肢支撑力数据，通过一套截瘫上躯干力学模型转化为三维重心动态图来显示重心运动轨迹，从而客观定量地评估出用身体平衡状况表征的FES行走效率。 结果静态标定显示系统测试精确度好于1.01%, 非线性度小于0.8%, 交互干扰小于3.2%。相关测试结果来自正在接受FES行走训练的截瘫患者。 结论初步表明该方法可以用于：（1）FES治疗截瘫患者行走效率的评估；（2）患者自我训练的平衡控制指导；（3）作为反馈信号选择一种有效的FES模式和阵列，同时也证实新方法在行走能力评估方面有很好的临床应用前景。 |
| 英文摘要: |
| Objective To explore a new method for assessing the walking efficiency of the paraplegic patients assisted by functional electrical stimulation (FES). MethodsThe measurement system based on a standard walker was developed. During FES-assisted walking of the paraplegic, the real-time of the upper limb support were obtained and transformed into a 3-D center of gravity (CG) motion map with a paraplegic upper body mechanical model to describe the CG motion locus. Then the FES efficiency indicated by walking balance condition was assessed objectively and quantitatively. ResultsIn this design, the pilot study of a paraplegic patient undergoing walking training with FES showed that the force accuracy was better than 1.01%, nonlinearity was less than 0.8%, and crosstalk was less than 3.2%. ConclusionThe results showed that this system may be used as 1) an evaluation index of FES-assisted paraplegic walking efficiency, 2) a balance control indicator during FES-assisted paraplegic walking training and 3) a feed-back signal to choose an efficient FES pattern and sequence. |
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