RT journal article T1 Fitness, body composition, and metabolic risk scores in children and adolescents: the UP&DOWN study A1 Sánchez-Delgado, Alejandro A1 Pérez-Bey, Alejandro A1 Izquierdo Gómez, Rocío A1 Jiménez Iglesias, José A1 Marcos, Ascesión A1 Gómez‑Martínez, Sonia A1 Girela‑Rejón, María José A1 Veiga, Oscar L. A1 Castro Piñero, José A2 Didáctica de la Educación FísicaPlástica y Musical K1 Cardiovascular disease K1 Aerobic capacity K1 Muscular strength K1 Youth K1 Adiposity AB We aimed to analyse the longitudinal association between physical fitness (PF) and body composition (BC) with a metabolic risk score (Met4) in children and adolescents and to elucidate whether the association between PF and Met4 differs when using relativized or absolute fitness variables. A total of 188 children (86 females) and 195 adolescents (97 females) were included. Cardiorespiratory fitness (CRF) was determined by the 20-m shuttle run test, and muscular fitness (MF) was determined by hand grip and standing long jump tests. Height and weight were measured, and the body mass index (Kg/m(2)) was calculated. Triceps and subscapular skinfolds were assessed to compute body fat percentage. Met4 was computed from systolic blood pressure, triglycerides, high-density lipoprotein cholesterol, and glucose levels. Relative CRF was longitudinally and negatively associated with Met4 in female children (beta = -0.031, p = 0.025), while absolute CRF was positively associated with Met4 in male children and adolescents (beta = 0.000, p < 0.05). Relative upper and lower-body MF were longitudinally and negatively associated with Met4 in female adolescents (beta = -1.347, beta = -0.005, p < 0.05), while absolute lower-body MF was positively associated with Met4 in male children (beta = 0.000, p = 0.019). BC was longitudinally and positively associated with Met4 in male children (beta-ranging from 0.011 to 0.055, all p < 0.05) and male adolescents (beta-ranging from 0.011 to 0.046, all p < 0.05).Conclusion: BC is more strongly associated with Met4 than PF in children and adolescents. An optimal body weight status should be considered the main objective of health-promoting programs at childhood and adolescence. Furthermore, the way of expressing the fitness variables determines the direction of the association with Met4.What is Known:Physical fitness is an important health indicator in children and adolescents, with great amount of previous evidence supporting the preventive role of maintaining optimal levels of both cardiorespiratory and muscular fitness for future cardiometabolic issues.What is New:The way of reporting physical fitness variables can affect the associations between physical fitness features and cardiometabolic outcomes. Since body composition variables have a great impact on both physical fitness and cardiometabolic health, relativizing physical fitness performance by body composition could lead to erroneous conclusions. PB SPRINGER SN 1432-1076 YR 2022 FD 2022-11 LK http://hdl.handle.net/10498/27844 UL http://hdl.handle.net/10498/27844 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026