118174 20240319081000.0 doi 10.1080/02640414.2021.1994728 sideral 126282 ART-2022-126282 eng Córdoba Rodríguez, D.P. Associations between Spanish children’s physical activity and physical fitness with lean body mass: The CALINA study 2022 Access copy available to the general public Unrestricted The present study investigated the associations between physical activity (PA) and physical fitness (PF) with lean body mass (LBM) and evaluated whether PA mediates the association between PF and LBM. 279 children (150 boys) aged 7.5 ± 0.3 years participated in the study. PA was assessed by accelerometry and PF with handgrip and the standing long jump test. Total lean soft tissue mass index (TLSTMI), muscle cross-sectional area index (MCSAI), and fat-free mass index (FFMI) were evaluated using dual-energy X-ray absorptiometry, peripheral quantitative computed tomography, and bioimpedance analysis, respectively. Total (β = 0.247) and vigorous PA (β = 0.143) were associated with TLSTMI in girls. In boys, total (β = 0.337), light (β = 0.290), vigorous (β = 0.200), and moderate-vigorous PA (β = 0.189) were associated with TLSTMI. Total PA was associated with FFMI (β = 0.299). Handgrip strength does not mediate the relationship between total PA and TLSTMI. Positive associations were found between handgrip strength and TLSTMI, MCSAI, and FFMI in both girls and boys. In children, there is a positive association between total and vigorous PA with TLSTMI. Handgrip strength does not mediate the relationship between total PA and TLSTMI. It was associated with TLSTMI, MCSAI, and FFMI. info:eu-repo/grantAgreement/ES/ISCIII/FIS/PI08-0559 info:eu-repo/grantAgreement/ES/ISCIII/FIS/PI13-02359 info:eu-repo/grantAgreement/ES/RETICS-ISCIII-ERDF/RD16-0022 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 3.4 2022 SPORT SCIENCES 20 / 87 = 0.23 2022 Q1 T1 1.141 2022 Orthopedics and Sports Medicine 2022 Q1 Sports Science 2022 Q1 Physical Therapy, Sports Therapy and Rehabilitation 2022 Q1 6.5 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Iglesia, I. (orcid)0000-0002-2219-3646 Gómez Bruton, A. Universidad de Zaragoza (orcid)0000-0002-0520-1640 Miguel Berges, M.L. (orcid)0000-0002-2411-9538 Flores Barrantes, P. Universidad de Zaragoza (orcid)0000-0002-2135-900X Casajús Mallén, J.A. Universidad de Zaragoza (orcid)0000-0002-7215-6931 Moreno, L.A. Universidad de Zaragoza (orcid)0000-0003-0454-653X Rodríguez, G. Universidad de Zaragoza (orcid)0000-0002-7985-9912 1006 255 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Enfermería 1006 245 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Educación Física y Depor. 1011 670 Universidad de Zaragoza Dpto. Microb.Ped.Radio.Sal.Pú. Área Pediatría 40, 4 (2022), 401-412 J. sports sci. Journal of Sports Sciences 0264-0414 1250555 http://zaguan.unizar.es/record/118174/files/texto_completo.pdf Postprint 1595688 http://zaguan.unizar.es/record/118174/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:118174 articulos driver 2024-03-18-14:07:21 ARTICLE