Impact of Training Interventions on Physical Fitness in Children and Adolescent Handball Players: A Systematic Review and Meta-Analysis. - Barahona-Fuentes, Guillermo; Hinojosa-Torres, Claudio; Espoz-Lazo, Sebastián; Zavala-Crichton, Juan Pablo; Cortés-Roco, Guillermo; Yáñez-Sepúlveda, Rodrigo; Alacid, Fernando (Applied Sciences (2076-3417), 2025)