A Preliminary Study on Using “Parabola and Triangle” to Improve Shooting Action
利用“抛物线与三角形”增进投篮动作之初探

摘要

近年，全民健康素养与健康促进成为人们研究的主题之一。篮球运动对健康促进具有积极作用，规范的投篮动作可以促进篮球运动的发展。因此，规范的投篮动作值得深入探究。本研究在篮球轨迹“抛物线”模型的基础上，以数理分析法与函数分析法建立投篮动作三角形模型，对“单手”肩上投篮动作的“投球”和“举球”两个要点进行初步探索，得出投篮距离与球员的手臂长度有相关，投篮高度与球员肩部高度和手臂长度有相关；发力角与球员的前臂与上臂长度有相关，发力角在前臂与上臂构成直角三角形中的投篮效果优于锐角三角形和钝角三角形等结论，为投篮动作提供了科学的数理依据，对健康促进，全民素养的提升具有现实意义。

Abstract

In recent years, national health literacy and health promotion have become one of the research topics. Basketball has a positive effect on health promotion, and the standardized shooting action can promote the development of basketball. Therefore, the standard shooting action is worth exploring. Trajectory parabolic model on the basis of this study on the basketball, with mathematical analysis and function analysis shooting triangle model is established, on the one hand shoulder shot action of pitch and the ball preliminary exploration, two points are concluded shooting distance is related with the player's arm length, shoot height and shoulder height and arm length with related; Power Angle is related to the length of the forearm and upper arm of the player, and the shooting effect of power Angle in the right triangle formed by the forearm and upper arm is better than acute Angle triangle and obtuse triangle, which provides a scientific mathematical basis for shooting action, and has practical significance for health promotion and the improvement of national literacy.