投掷是田径运动中的田赛项目,其中包括推铅球、掷铁饼、掷标枪和掷链球.投掷时人体施力于投掷器械,使之向预定目标飞行,投出的器械在空中做斜抛运动,其飞行的远度主要取决于器械出手时的初速度、出手高度和出手角度.出手时的初速度越大飞行的距离越远;出手点越高,器械投出的越远;以适宜的出手角度投掷能使器械飞得更远.在高中体育与健康教材中,将铅球作为必选的内容之一,本文以推铅球为例,分析决定投掷远度的三个因素的主次关系. Throwing is a track and field event in athletics, including shot put, discus throwing, throwing javelin, and hammer throwing. When throwing, the human body exerts force on the throwing equipment to make it fly to a predetermined target. , The distance of its flight mainly depends on the initial velocity, shot height and shot angle of the shot, the greater the initial velocity when the shot is taken, the farther the flying distance is, the higher the shooting point is, the more the shot is cast, Shot throwing can make the device fly farther.In the high school sports and health textbooks, the shot as one of the necessary content, this paper takes the shot put as an example, the analysis determines the distance between the three factors of the primary and secondary relationships.