| 用最小二乘拟合法量化手臂运动控制中肌电与力的动态对应关系 |
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| 引用本文： | 宋启来.用最小二乘拟合法量化手臂运动控制中肌电与力的动态对应关系[J].广州体育学院学报,2005,25(1):47-50,86. |
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| 作者姓名： | 宋启来 |
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| 作者单位： | 波士顿大学神经肌肉研究中心,广州体育学院,广东,广州,510075 |
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| 摘 要： | 肌肉等长收缩时肌电积分与肌力间已被认定存在着线性关系。肌肉非等长收缩过程中肌电与肌力间的对应关系则难以定量表达。然而，为了探入我们对人体运动神经控制内在机制的量化分析，不可避免地我们要对肌肉动态收缩中肌电与肌力间的对应关系有定量的了解。本文介绍作者在手臂指点动作的神经-运动控制研究中建立起以环节转动方向为参照的协同肌-对抗肌共同活动的肌力模型，用数理统计方法中之最小二乘拟合法求解肌电与肌力间动态对应关系的过程。
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| 关 键 词： | 肌电-力的动态对应关系 最小二乘拟合法 手臂指点动作 运动控制 |
| 文章编号： | 1007-323X(2005)01-0047-04 |
Quantifying Dynamic EMG-force Relationship in Arm Pointing by Least-square Data Fitting |
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| SONG Qi-lai.Quantifying Dynamic EMG-force Relationship in Arm Pointing by Least-square Data Fitting[J].Journal of Guangzhou Physical Education Institute,2005,25(1):47-50,86. |
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| Authors: | SONG Qi-lai |
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| Abstract: | It has been evidenced that integrated EMG is linearly associated with force in isometric contractions.Although desirable,it is difficult to quantify EMG under non-isometric conditions.However,it is ineveitable to learn this EMG-force proportionality dynamically before numeric analytics can be applied to further our understanding of intrinsic neuro-motor funtioning.This study established a concerted agonist-antagonist muscle activation model according to the direction of segment rotation during arm pointing movement.A statistical approach using least-square data fitting was introduced to quantify dynamic EMG-force relationship in this neuro-motor control experimental setting. |
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| Keywords: | dynamic EMG-force relationship least-square fitting arm pointing motor control |
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