Biomechanical differences of free kick in soccer between players of Jit and Atahualpa clubs

Abstract

Introduction: The research is based on studying the existing biomechanical differences between players of different levels, as is JIT club (Juventud Independiente de Tabacundo) pertaining to the second professional category soccer of Pichincha and Sociedad Deportiva Atahualpa club, which is in Amateur category of Pichincha soccer. Objective: Compare the biomechanical differences between professional and amateur players in the free kick to determine the movements that permit greater effectiveness in the technical element using the Kinovea software. Methods: To determine the movements that influence the correct execution of the free kick, the Kinovea software was used, analyzing each gesture in detail, the use of a camera and a quality computer are necessary for the study, for this reason we worked with high standard equipment. Two independent samples were analyzed with SPSS statistical software, using the Mann-Whitney U test. Results: It is determined that there are significant differences between the variables studied, in order to achieve the greatest efficiency of the technical gesture, a leg opening angle of 75.66° should be formed, as well as a speed of 8.96 m/s and an angle of the knee articulation of the base leg of approximately 106.81°. Conclusions: The conditions in which the study of the free kick in soccer were performed are identical, which allows us to obtain truthful data. The greatest influence is found in the technical level that the professional player has in relation to the amateur player, with some exceptions.