• openAccess   Association of physical activity with muscular strength and fat free mass in adolescents; The HELENA Study 

      Moliner-Urdiales, Diego; Ortega, Francisco B.; Vicente Rodríguez, Germán; Rey López, Juan P.; Gracia Marco, Luis; Widhalm, Kurt; Sjöstrom, Michael; Moreno, Luis A.; Castillo, Manuel J.; Ruiz, Jonatan R. Springer Verlag (2010)
      Objective: To analyze the association of objectively assessed physical activity (PA) with muscular strength and fat free mass in adolescents, and to determine whether meeting the current PA recommendations is associated ...
    • openAccess   Socioeconomic status influences physical fitness in European adolescents independently of body fat and physical activity: the HELENA Study 

      Jiménez Pavón, David; Ortega, Francisco B.; Ruiz, Jonatan R.; España Romero, Vanesa; García Artero, E.; Moliner-Urdiales, Diego; Gómez Martínez, Sandra; Vicente Rodríguez, Germán; Manios, Y.; Béghin, L.; Répasy, J.; Sjöstrom, Michael; Moreno, Luis A.; González Gross, M.; Castillo, Manuel J. Grupo Aula Médica, S.L. (2010)
      Introduction: The influence of socioeconomic status on health-related fitness is not clear. Aim: To examine the influence of socioeconomic status on health-related fitness in adolescents. Methods: A total of 3,259 ...