Age-related differences in linear sprint and power characteristics in youth elite soccer players

Speed and power are important components of fitness performance and determine the level of success in soccer. High intensity activity during the game are important elements in soccer because increasing speed over a short distance may be necessary in crucial phases of the game, not only in adult, but also in young soccer players. The aim of this study was to identify speed and power variables and to determine their relationship among three different age categories, U16, U17 and U19. The test of between groups effect (regarding the age) revealed significant differences in S5, S10 and F20 running speed test; conversely, they found an insignificant effect in jump power tests (CMJFA, CMJ). Results of their study indicate that despite common physiological speed and power predispositions there are significant agerelated differences in running speed and insignificant differences in the vertical jump assessment.