Fat-free mass and maturity status are determinants of physical fitness performance in schoolchildren and adolescents Paz Pezoa-Fuentes; Marco Cossio-Bolaños; Camilo Urra-Albornoz; Fernando Alvear-Vasquez; Evandro Lazari; Luis Urzua-Alul; Luis Felipe Castelli Correia de Campos; Rossana Gomez-Campos;

Ultrasound reference values for the calcaneus of children and adolescents at moderate altitudes in Peru Rossana Gómez-Campos; Jose Sulla-Torres; Cynthia Lee Andruske; Luis Felipe Castelli Correia de Campos; Cristian Luarte-Rocha; Wilbert Cossio-Bolaños; Marco Antonio Cossio-Bolaños;

Mental health mediates the association between cardiorespiratory fitness and academic performance in European schoolchildren Adrià Muntaner Mas; Pedro L. Valenzuela; Tania Pinto-Escalona; Kirk I. Erickson; Óscar Martínez-de-Quel;