体育运动中抛物体问题研究的基本方法

Basic methods of parabola body in sports

基于抛物体运动规律对两类典型的抛物体运动(投掷项目、篮球投篮)进行了分析。在投掷项目中,投掷器械的飞行远度作为目标函数,在Excel中计算了不同的出手速度(v0)、出手角度(θ)及出手高度(H)对器械飞行远度的影响;在篮球运动中,以投篮的最小速度角和最小进篮误差作为目标函数,计算了不同的投篮距离、出手高度的情况下,投篮的最佳出手角度,寻找出篮球投篮最佳出手角的变化规律以便于运动员在实践中掌握和运用,提高投篮的命中率。

Basketball and throwing events were analyzed on the basis of parabola principles. In the throwing events, the flying distance was taken as the target function and influences of velocity, angle and height of throwing on the flying distance was obtained with Excel. In basketball, the smallest velocity angle and the shooting angles were taken as target function to work out the optimal shooting angle under different shooting distance and height. The purpose was to help the players grasp and use the shooting law and promote the shooting percentage.