Effects of multi-component training on the physical fitness of young taekwondo athletes - Herrera-Valenzuela, Tomas; Valdes-Badilla, Pablo; Franchini, Emerson; Santos, Jonatas Ferreira da Silva; Ramirez-Campillo, Rodrigo; Garcia-Hermoso, Antonio; Duran-Aguero, Samuel; Castaneda-Gomez, Juan Pablo (Ido Movement for Culture: Journal of Martial Arts Anthropology, 2016)