Training and fitness variability in elite youth soccer: perspectives from a difficulty prediction model - Elghoul, Y.; Trabelsi, K.; Masmoudi, L.; Ben Kahla, A.; Souissi, M. A.; Clark, C. C. T.; Boukhris, O.; Glenn, J. M.; Frikha, M. (Kinesiology, 2022)
Keywords: junior elite sport; youth; juniors; soccer; performance development; training periodization; load volume; load intensity; competition period; performance capacity; sprint; jump; running; anaerobic; performance factor; Croatia; junior sports; sport games