【摘要】：目的:利用仿真建模系統(tǒng)和三維測力臺對完成太極拳中的弓步和馬步動作時(shí),人體支撐腿主要肌肉和膝關(guān)節(jié)的受力以及支撐穩(wěn)定性進(jìn)行研究,并通過表面肌電進(jìn)行驗(yàn)證。方法:使用FAB系統(tǒng)采集5名受試者的運(yùn)動學(xué)參數(shù)用以建立模型,并通過三維測力臺和表面肌電系統(tǒng)對不同動作的動力學(xué)及肌電特征進(jìn)行分析。結(jié)果:1完成不同幅度弓步動作時(shí),比目魚肌和股二頭肌的受力分別為75.19N,215.81N和274.30N,明顯高于馬步動作。2完成最大幅度弓步和馬步動作時(shí),膝關(guān)節(jié)垂直受力分別為-1454.80N和-498.12N,前后方向的受力分別為-1886.60N和-1947.30N。3股直肌、股內(nèi)側(cè)肌和股二頭肌的肌肉活性仿真結(jié)果同積分肌電之間顯著相關(guān),相關(guān)系數(shù)分別為0.900,0.922和0.852。結(jié)論:完成馬步動作時(shí),主要發(fā)力的肌肉是股直肌和股內(nèi)側(cè)肌。而完成弓步動作時(shí),比目魚肌和股二頭肌的發(fā)力也明顯增加,且完成大幅度的弓步動作時(shí),膝關(guān)節(jié)產(chǎn)生的壓縮載荷和剪切載荷很大。同時(shí),大腿肌群中的股直肌、股內(nèi)側(cè)肌和股二頭肌的肌肉活性仿真結(jié)果同積分肌電之間一致性較高。
[Abstract]:Aim: to study the force and stability of the main muscles and knee joint of the human supporting leg when the arch and horse steps in Taijiquan were completed by using the simulation modeling system and the three-dimensional force measuring platform, and to verify the results by surface electromyography (EMG). Methods: the kinematic parameters of 5 subjects were collected by FAB system to establish the model, and the dynamics and electromyography characteristics of different movements were analyzed by means of three dimensional dynamometer and surface electromyography system. Results the stress of soleus muscle and biceps femoris muscle were 75.19 Nou 215.81N and 274.30N respectively, which was significantly higher than that of equestrian movement .2. The vertical force of knee joint was -1454.80N and -498.12Nrespectively, and the forward and anteroposterior forces were -1886.60N and -1947.30N.3 respectively. The simulation results of muscle activity of medial femoris and biceps femoris were significantly correlated with the integral electromyography, the correlation coefficients were 0.9000.92 and 0.852, respectively. Conclusion: the main muscle is rectus femoris and medial femoris. When the bow movement is completed, the strength of the soleus and biceps femoris is also increased, and the compression and shear loads of the knee joint are very large. At the same time, the simulation results of muscle activity of rectus femoris, medial femoris and biceps femoris are in good agreement with integral electromyography.
【作者單位】： 北京師范大學(xué)體育與運(yùn)動學(xué)院;
【基金】：教育部人文社科課題(09YJA880013) 2012年度北京師范大學(xué)教學(xué)建設(shè)與改革項(xiàng)目(12-01-13)
【分類號】：R318.01
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本文編號：2242105