The findings indicated that PRO performed better than younger players in all assessments, except for the sprint tests. This may have been possible due to the differences inì training experience, technical expertise and individual levels of strength/power. However, the absence of differences between the U-20 and U-17 groups highlighted the necessity of developing specific training strategies in order to improve the physical capacities of younger players, throughout the maturation process. Moreover, due to the importance of sprinting in soccer, it is strongly recommended that fitness coaches develop more effective strategies to improve speed ability in professional players.
Fonte: The Journal of Sports Medicine and Physical Fitness, In Press