The Establishment Of Sport Scores' Prediction Model About Special Physical Quality Of Hebei Woman Javelin Athletes Aged 15-19

Content: Throwing javelins is a multi-axial rotary throwing sport of light instrument and complex technology. Its characteristics determine the athletes'years of special physical quality training direction, especially in the training process of young athletes, it not only should guarantee to enhance the athletes' physical quality comprehensively in daily special training, more important is to ensure that these outstanding young athletes in sports scores increasing stage can make effectively special physical training in shorter time before the game. In order to act scientific judgment on woman javelin sport development status of Hebei province, improve years of special physical training insufficiency of Hebei teenager woman javelin athletes, enhance pertinence and effectiveness of special physical quality training, this subject through combining the characteristics of special physical training of javelin athletes and analyzing their javelin scores, finds out the general characteristics of special physical quality of Hebei teenager woman javelin athletes, establishes index system, sport score prediction model and evaluation standard of special physical quality of Hebei women javelin athletes aged from 15 to 19. The study provides scientific and practical data analysis model for promoting Hebei women javelin sport higher and better development.This subject through using scientific research methods such as literature data method, expert interview method, Delphi method, questionnaire survey method, factor analysis method, multiple regression method and so on, obtains special physical quality index system framework, special athletic score prediction model, single index evaluation standards of special physical quality and standard Z component tachometer, etc. of Hebei woman javelin athletes aged from 15 to 19. The main research results are as follows:(1)Through the analysis of data for typical index, establishes the special physical quality javelin index system of Hebei women athletes aged from 15 to 19. It includes four kinds of factors, such as the speed factor, the explosive force factor, the systemic coordination factor and the flexibility factor. These factors'specific indexes are as follows: The speed factor: 30 meters run holding javelin, 60 meters timed run and 100 meters run; The explosive force factor: a minute fast supine-push, standing long jump, three-step run-up land-falling jump and load squat; The systemic coordination factor: half-squatting two-hand front throw the medicine ball above the head, whole run-up throw the 300g ball above the shoulder and kneeling two-hand front throw the medicine ball above the head; The flexibility factor: two-hand measure grip distance holding javelin and turning over shoulder, standing flexor body forward.Finally, through analysis of questionnaire survey data, find out the training content selection frequency and theoretical importance of the special javelin physical training practice process of Hebei women athletes aged from 15 to 19 existing deviation. Suggest coordinative developing special speed, and increasing the proportion of special coordination and physical flexibility training contents in training practice.(2)Establish special performance prediction model of special physical quality. screen out four sensitivity index: 30 meters run holding javelin(X1),three-step run-up land-falling jump (X2), whole run-up throw the 300g ball above the shoulder(X3),two-hand measure grip distance holding javelin and turning over shoulder(X4). Construct grades prediction model. Model formula is: (?)=59.558-6.644 X1+0.903 X2+0.104 X3+0.007 X4 Above established teenagers woman javelin athletes athletic performance prediction model can objectively evaluate indexes'level of young athletes'current physical quality, make athletes and coaches can clarify their respective lacking aspect, provide a comparatively objective testing method for the prediction results and control process training.(3)Establish special physical qualities'evaluation standards of Hebei women javelin athletes aged from 15 to 19. The development of evaluation criteria can clearly reflect development level of various special physical qualities, special physical development comprehensive balanced degree under some movement level, timely judge ADAPTS degree of special physical qualities'development level and special scores, etc, provide theory basis for the coaches clear training direction, grasp the training focus and special scores increasing.