Biodynamic analysis of the most important mechanical variables and their contribution rate in the last step stage in the convergence run and achievement of the three jump players

Introduction to the research and its importance include the knowledge of the biodynamic analysis that is concerned with the study and analysis of biomechanics through the use of modern laboratory devices for the purpose of reaching facts that may contribute to the development of the effectiveness of triple jump. Such as a dynafoot foot scanner, in order to determine the various variables affecting the technique of performing the triple jump player.The research problem, we find that there is a weakness in external participation due to the inability of the players to reach the qualifying numbers in the recent period, and the low level of technical performance and the noticeable weakness in the digital level of the triple jump players, are among the problems that stand and prevent the team from participating in international competitions and achieving positive results, Therefore, the two researchers are trying to find mechanical solutions to the movement problems and obstacles that the player is exposed to in the technical performance of the triple jump skill,research aims:1-Knowing the values of the most important mechanical variables through the biographical analysis of the step and achievement stage in the triple jump of the research sample2-Knowing the relationship between the values of the measured mechanical variables with achievement in the triple jump for the research sample and identifying the percentage of the contribution of mechanical variables to the last step and the stages of the rise measured with the achievement in the triple jump for the research sample.The second chapter included the field research procedures, and the researchers used the descriptive platform to study the linking relationships. The sample of the research was the three-jump players advanced and candidates for the national team. The researchers, after conducting exploratory experiments and identifying obstacles, conducted the main experiment on Tuesday, 29/2/2019.The third chapter: It includes the presentation, analysis, and discussion of the results for the player and for relying on modern sources.The fourth chapter: Conclusion included the conclusions, the researchers concluded (that the biodynamic analysis of the last step of the approximate run phase has a strong correlation with the achievement of the players of the triple jump, that the hopper changed the length of the last step in the convergent run that showed a significant correlation between speed and time of the last step In the run-off with the achievement, and reducing the horizontal speed of the hopper affected the level of achievement). The recommendations (to conduct research for biodynomographic analysis for each stage of the triple jump, and its relationship to achievement in order to stop the existing problems of each player and find solutions to them)