Special quality evaluation and optimal putting angle model for shot putters based on grey correlation analysis

摘要

In order to improve the shot putters??? competition results, this study establishes the mathematical model of shot sport. By working out the functional relationship between the maximum projectile range and its influencing factors, and conducting analysis of its dynamics and mechanical characteristics, this study obtains the optimal putting angle for shot put. Besides, the results fromgrey correlation analysis reflect the numerical relationship between athletic performance and each special quality indicator, the contribution of the various indicators to the performance can be calculated and thus the main factors affecting the shot special achievement can be obtained. The results of this study have a positive impact on shot related researches and have great significance in the better and faster development of field and track.What???s more, this research provides certain basis for the shot put coaches and athletes in training, encouraging the athletes to go beyond themselves continuously.