Cadenas-Sánchez, CristinaMigueles, Jairo H.Esteban Cornejo, IreneMora González, JoséHenriksson, PontusRodríguez Ayllon, MaríaMolina García, PabloLöf, MarieLabayen Goñi, IdoiaHillman, Charles H.Catena, AndrésOrtega, Francisco B.2020-07-092021-02-2420200264-041410.1080/02640414.2020.1729516https://academica-e.unavarra.es/handle/2454/37321The aim of this study was to examine the associations of fitness and physical activity with academic achievement in children with overweight/obesity. A total of 106 (10.0 ± 1.1y, 61 boys) children participated. The fitness components were assessed by field and laboratory-based tests. Physical activity was measured via accelerometry. The academic achievement was assessed by a standardised test and school-grades. Field-based cardiorespiratory fitness was associated with language skills (ß-standardised- ranging from 0.281 to 0.365, p < 0.01). The field-based muscular strength was associated with grade point average, natural and social sciences, and foreign language (ß = 0.280–0.326, all p ≤ 0.01). Speed-agility was associated with some language-related skills (ß = 0.325–0.393, all p ≤ 0.01). The laboratory-based muscular strength also showed an association with mathematics skills (ß = 0.251–0.306, all p ≤ 0.01). Physical activity did not show significant association with academic achievement (p > 0.01). Overall, the significant associations observed for muscular strength and speed/agility were attenuated and disappeared in many cases after additional adjustments for body mass index and cardiorespiratory fitness, indicating that these associations are inter-dependent. Our study contributes by indicating that other fitness components apart from cardiorespiratory fitness, such as muscular strength and speed-agility, are positively associated with academic achievement. However, these associations appear to be dependent on body mass index and cardiorespiratory fitness.40 p.application/pdfapplication/zipengAerobic fitnessAcademic performanceLight physical activityModerate physical activityVigorous physical activityModerate-to-vigorous physical activityinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess