人体肘关节复合运动的建模及协调控制

来源 :清华大学学报(自然科学版) | 被引量 : 25次 | 上传用户:liongliong502
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为探讨人体上肢生物力学建模的基础性问题,建立了包括肌肉肌腱动力特性和神经兴奋肌肉收缩动力学方程的肘关节系统生物力学模型,并针对该关节快速屈曲和旋前复合运动过程,采用最优控制方法进行分析计算。计算结果与实验测量结果在肌肉力矩、肌电信号和肌肉活性参数等方面均很好符合;同时利用模型分析了肌肉协调运动模式。结果表明:在复合运动过程中,神经系统会将肌肉结成不同的协同肌群,并控制3组不同的协调肌群按照特定的时序结构去执行运动的加速、制动和姿态控制。
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