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大數(shù)據(jù)下花樣跳繩運動動作安全性預(yù)測仿真

發(fā)布時間:2019-06-08 16:02
【摘要】:對花樣跳神運動動作的安全性進(jìn)行預(yù)測,能夠有效降低跳繩運動對人體各部位的損傷概率。對花樣跳繩動作安全性的預(yù)測,需要先評價跳繩動作對關(guān)節(jié)損傷,以踝關(guān)節(jié)為例,獲得慣性載荷作用下其關(guān)節(jié)面形變量。傳統(tǒng)方法對關(guān)節(jié)表面的力學(xué)特征進(jìn)行分析,設(shè)定關(guān)節(jié)面的應(yīng)力峰值,但忽略了關(guān)節(jié)面的形變量,導(dǎo)致對關(guān)節(jié)預(yù)測精度偏低。提出大數(shù)據(jù)下基于逆向動力學(xué)的花樣跳繩運動關(guān)節(jié)預(yù)測模型。計算得出動態(tài)平衡狀態(tài)下關(guān)節(jié)位置的主動活動度,獲得動作在慣性載荷作用下其各個關(guān)節(jié)面的形變量,進(jìn)一步得到了關(guān)節(jié)位置力矩變化量及角度變化量遞推計算式,并分析了關(guān)節(jié)位置覺的影響因素,建立花樣跳繩運動對動作安全性的預(yù)測模型。實驗結(jié)果表明,所提方法預(yù)測精度高,能夠預(yù)防和減少關(guān)節(jié)損傷。
[Abstract]:Predicting the safety of figure skipping can effectively reduce the damage probability of rope skipping to all parts of the human body. To predict the safety of pattern rope skipping, it is necessary to evaluate the joint injury caused by rope skipping. Taking the ankle joint as an example, the joint shape variable under inertial load is obtained. The mechanical characteristics of the joint surface are analyzed by the traditional method, and the stress peak value of the joint surface is set, but the shape variable of the joint surface is ignored, which leads to the low accuracy of joint prediction. A prediction model of pattern rope skipping joint based on reverse dynamics under big data is proposed. The active motion of the joint position under the dynamic equilibrium state is calculated, and the shape variables of each joint surface of the action under the action of inertia load are obtained, and the recurrence formulas of the torque variation and the angle change of the joint position are further obtained. The influencing factors of joint position perception are analyzed, and the prediction model of movement safety caused by pattern rope skipping is established. The experimental results show that the proposed method has high prediction accuracy and can prevent and reduce joint injury.
【作者單位】: 江西中醫(yī)藥大學(xué)體育教學(xué)部;南昌大學(xué)體育與教育學(xué)院;
【分類號】:G898.1


本文編號:2495416

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