Eccentric-concentric ratio: A key factor for defining strength training in soccer - Nunez, F. J.; Hoyo, M. de; Lopez, A. Muñoz; Sanudo, B.; Otero-Esquina, C.; Sanchez, H.; Gonzalo-Skok, O. (International Journal of Sports Medicine, 2019)
Keywords: soccer; training; training method; training means; strength; performance; sprint; junior elite sport; Germany; sport games; junior sports