Acceso usuarios
João B. Ferreira-Junior, Irismar Gonçalves Almeida da Encarnação, Vitor Hugo Santos Rezende, Jeann Carlos Gazolla Oliveira, Lucas Augusto Souza, José Carlos Assunção, Amir Hossein Ahmadi Hekmatikar, Daniel Barbosa Coelho
The present study investigated the effects of different intensities of FIFA11+ on the physical performance of U-15 soccer players. Eighteen U-15 soccer players (13.3 ± 0.7 years) performed five randomized conditioning activities (CA), with each CA separated by 3–7 days. The five CA were: 1) FIFA11+ at level 1 (F1); 2) FIFA11+ at level 2 (F2); 3) FIFA11+ at level 3 (F3); 4) FIFA11+ at reduced version (FR); and 5) Standard warm-up of the players (Control). The subjective session rating of perceived exertion (session-RPE), countermovement jump (CMJ), 10-m sprint, and 505 agility test were measured 5 min after each CA. CMJ was higher in the FR (29.6 ± 5.5 cm) compared to the F1 (27.7 ± 4.6 cm) (p<0.05). There was no difference between the other comparisons (F2: 28.2 ± 3.6 cm; F3: 28.1 ± 5.0 cm; Control: 28.6 ± 4.9 cm; p>0.05). The sprint performance was higher in the Control (1.937±0.166 s) and FR (1.931±0.123 s) compared to the F1 (2.006±0.113 s) (p<0.05). There was no difference between the other comparisons (F2: 1.970±0.116 s; F3: 1.999±0.117 s) (p>0.05). Agility performance did not differ between conditions (FR: 2.756±0.205 s; F1: 2.7286±0.229 s; F2: 2.832±0.228 s; F3: 2.804±0.209 s; CON: 2.756±0.205 s; p>0.05). Session-RPE was considered hard for all CA, with no significant differences among conditions (p>0.05). The internal training load was higher in the F1, F2, and F3 compared to the FR and CON (p<0.05). The current results suggest performing a standard warm-up or the reduced version of FIFA 11+ to optimize performance in the CMJ and sprint of U-15 soccer players.
