| The sport of swimming events competitiveness which received much attention from researchers and trainers in different effectiveness , they are one of the games and activities loved by everyone , whether to raise the level of fitness or to relax and enjoy , have urged the interest of scientific research and its distinguished role in improving the level of technical performance and digital of this type events by relying on modern scientific methods and the use of science in order to reach higher levels. The effectiveness of the freestyle events , which consist of a set of stages art that complement each other , in order to perform these phases in a coherent and streamlined necessary to determine the conditions Albayumkanikih to perform well , and is the start-up phase of the most important stages affecting the completion of the swimmer , especially in racing short distances and at equal level swimmers as the reduction of the period of time to travel the distance specified for the race is the ultimate goal of the swimmer and this is achieved through the appropriate speed acquired and which contributes greatly to the performance of which is the correct motor free of errors at this stage . The kinetic analysis gives us an indication of the laws and clarify the terms of the development of athletic movements , and at the same time reveals whereby new methods of art athletic performance , has addressed many of the studies beginnings different in swimming research and kinetic analysis to try to detect the foundations of mechanical kinetic correct , but what distinguishes this search for is the study of the kind of beginnings , which is the most recently used is to start ( the track ) in the free-swimming , and making progress reflected the importance of research being interested in analyzing the relationship between some of the variables Elkinmetekih to start the track in freestyle in order to get the results may contribute to the development of the sport and reach out to advanced ranks |