Reproducibilidad de test de aceleración y cambio de dirección en fútbol. [Reproducibility of test acceleration and change of direction in football].

Abstract

Soccer is a many-sided sport, where the conditional and anthropometrical factors are necessary pre-requirements to compete in high level. Especially the speed and the agility, they are necessary to reach the yield in soccer. In the study 10 players took part (21,2 ? 2,0 years; 1,81 ? 0,1 m; 73,7 ? 5,9 kg; 22,5 ? 0,8 kg.m-2) with 3 years of experience in regional category. The reproducibility of the 20 meters sprint test and the test of capacity to change direction (MAT) and test of sprint with way changes of 90S (90S), were analyzed by means of designed of test - retest. The reproducibility was calculated by means of the Intraclass Coefficient Correlation (ICC). The representation of the conformity between sessions by means of the method of Bland and Altman. The results suggest an acceptable reproducibility of the analyzed test. A moderate association has obtained between two test (MAT and 90S, r = 0,74). Low between the sprint 20 m and 90S (r = 0,46) and a low between the sprint 20 m and the MAT (r = 0,53). The test of 20 m, MAT and 90S showed good values of absolute and relative reproducibility. We may affirm that a moderate association has been obtained between the test of capacity of way change (MAT and 90S), and a low association between the sprint 20 m and the MAT and an association low between the sprint 20 m and the test of 90S.