北京生物醫(yī)學工程

基于二次規(guī)劃的人體屈伸運動肌肉力預測研究

Research on Muscle Force Prediction of Human Bending Based on Quadric Programming Method

作者：聶文忠葉銘王成燾

單位：上海應用技術學院機械與自動化學院（上海200235）

分類號：

出版年·卷·期（頁碼）：2010·29·2（143-148）

摘要：

目的研究人體屈伸運動過程中的肌肉力。方法在“中國力學虛擬人”模型的基礎上，確定屈伸運動中參與運動肌肉束的生理橫截面積及附著點的起止位置，建立完整的人體胸腰部骨肌系統(tǒng)模型。利用NDI運動捕捉系統(tǒng)獲取脊柱形狀的變化，利用肌電測量系統(tǒng)采集運動中肌肉的肌電信號規(guī)律。采用二次規(guī)劃方法對不同運動速度和不同負載下的肌肉力進行優(yōu)化預測。結果通過二次規(guī)劃法預測出的肌肉力與肌電信號具有較好的一致性。結論該方法可以有效地預測人體屈伸運動中的肌肉力，對深入了解肌肉的運動機理，預防和減少運動損傷發(fā)生具有重要意義。

Objective To research the muscle force of human bending. Methods Human thoracolumbar musculoskeletal model was constructed after physiological crosssection area of muscle fascicles and their origin and insertion points were determined based on the model of ‘mechanical visual human of China’. The change of spine configuration was captured by NDI motion capture system. The muscle action magnitude was recorded by electromyography measurement system. The muscle fascicles forces were optimized by quadric programming method.Results The results showed that the predicted muscle forces were in good agreement with the electromyography signature. Conclusion This method effectively predicted muscle forces in human bending. It was significant to deeply understand the mechanism of muscle movement and prevent and reduce athletics trauma.

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