跳台滑雪中运动员采用什么姿态飞得既稳且远<sup>1)</sup>

跳台滑雪中运动员采用什么姿态飞得既稳且远¹⁾

摘要: 针对冰雪运动项目跳台滑雪,本文阐述了跳台滑雪运动员在比赛过程中助滑、起跳、飞行及着陆阶段的动作技术特点及其所蕴含的力学原理,设计制作了实验道具并开展了演示实验,说明了起跳阶段适当蹬地与飞行阶段维持特定姿态是跳台滑雪运动员取得优异成绩的关键因素。本文还探讨了相关演示实验在基础力学教学中的应用前景。

Abstract: It explains the technical characteristics and mechanical principles in the ski jumping sport during the four phases, i.e., approach, takeoff, flight and landing. Relevant experiments have been carried out to investigate the dynamics. It is found that the leg thrust against the ground during takeoff phase and maintaining specific body posture during flight phase are the key factors to ensure the athletes to achieve satisfactory scores during the game. This paper also discusses the possible applications of the relevant experiments for teaching theoretical mechanics.