Modelling longitudinal changes in isokinetic and isometric strength of the knee in adolescent soccer players - Duarte, J. P.; Philippaerts, R.; Valente-dos-Santos, J.; Seabra, A.; Coelho e Silva, M. J.; Malina, R. M. (21st Annual Congress of the European College of Sport Science (ECSS), Vienna, 6. -9. July 2016, 2016)