Shot Performance Influence Factors Correlation Degree Analysis Based on Genetic Algorithms

Lei Yang

doi:10.2174/1874129001509010479

Abstract

The paper first applies Newton mechanical and physical knowledge to establish shot throwing process mathematical model, calculates throwing performance is related to α, h, t0, v0 these five factors; the next, it adopts genetic algorithms to solve optimal throwing performance and these five factors best parameters, from which optimal throwing performance is 21.78m; finally it adopts grey relational degree algorithms and analyzes five influence factorsf primary and secondary relation is α, h, t0, v0 , which provides scientific evidence for making scientific training plans, during training, coaches and athletes should pay attention to foster strengths and circumvent weakness, give their own advantages into full play so that can get more ideal results.

Highlights

Shot is a kind of very important sports competitive event, and in some important competitions, athletes’ shot throwing strength is basically the same by training, that is to say, it is always athletes’ throwing skills that decide competition winning
Athlete should learn about shot whole process status [1]. It should carry out kinematical analysis of shot whole movement status, according to kinematical knowledge, it solves throwing performance and release angle, release speed, and release height so on multiple equation, after that it makes use of mathematical analysis to analyze influence factors in training on established model, and make clear influence factors primary and secondary relation, and guide training with scientific method [2]; in training, athletes should pay attention to foster strengths and circumvent weakness, give their own advantages into full play so that can get more ideal results [3]
Assume shot is regarded as a particle; Assume throwing process ignore air resistance influence; Assume that gliding can make superposition with throwing ; Assume gliding phase is horizontal movement, shot generates a horizontal initial speed v0 with human body; Assume throwing instant, athlete acting on shot push force size is F that remains unchanged, force direction and shot release angle ! are consistent [4]

Summary

INTRODUCTION

Shot is a kind of very important sports competitive event, and in some important competitions, athletes’ shot throwing strength is basically the same by training, that is to say, it is always athletes’ throwing skills that decide competition winning. Athlete should learn about shot whole process status [1]. It should carry out kinematical analysis of shot whole movement status, according to kinematical knowledge, it solves throwing performance and release angle, release speed, and release height so on multiple equation, after that it makes use of mathematical analysis to analyze influence factors in training on established model, and make clear influence factors primary and secondary relation, and guide training with scientific method [2]; in training, athletes should pay attention to foster strengths and circumvent weakness, give their own advantages into full play so that can get more ideal results [3]

PROBLEMS ASSUMPTION

Throwing Process Physical Model Establishment

Mathematical Analysis

Grey Relational Degree Analysis

CONCLUSION