Physical, physiological characteristics and sport goal orientation of top Portuguese kickboxing athletes - Paulo Silva; Miguel Silva; João Duarte; Alexis Ahmed; Oscar Tavares; João Valente-Dos-Santos; Joaquim Castanheira; Rui Soles-Gonçalves; Luís Rama; Manuel J. Coelho-E-Silva (Revista de Artes Marciales Asiáticas, 2016)