Physical Fitness and Self-Rated Health in Children and Adolescents: Cross-Sectional and Longitudinal Study.

Self-rated health (SRH) is an independent determinant for all-cause mortality. We aimed to examine the independent and combined associations of components of physical fitness with SRH at baseline (cross-sectional) and two years later (longitudinal) in children and adolescents. Spanish youth = 1378) aged 8 to 17.