Associations between Spanish children’s physical activity and physical fitness with lean body mass: The CALINA study

Córdoba Rodríguez, D.P. ; Iglesia, I. ; Gómez Bruton, A. (Universidad de Zaragoza) ; Miguel Berges, M.L. ; Flores Barrantes, P. (Universidad de Zaragoza) ; Casajús Mallén, J.A. (Universidad de Zaragoza) ; Moreno, L.A. (Universidad de Zaragoza) ; Rodríguez, G. (Universidad de Zaragoza)

Resumen: 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.

Idioma: Inglés

DOI: 10.1080/02640414.2021.1994728

Año: 2022

Publicado en: Journal of Sports Sciences 40, 4 (2022), 401-412
ISSN: 0264-0414

Factor impacto JCR: 3.4 (2022)

Categ. JCR: SPORT SCIENCES rank: 20 / 87 = 0.23 (2022) - Q1 - T1

Factor impacto CITESCORE: 6.5 - Health Professions (Q1) - Medicine (Q1)

Factor impacto SCIMAGO: 1.141 - Orthopedics and Sports Medicine (Q1) - Sports Science (Q1) - Physical Therapy, Sports Therapy and Rehabilitation (Q1)

Financiación: info:eu-repo/grantAgreement/ES/ISCIII/FIS/PI08-0559
Financiación: info:eu-repo/grantAgreement/ES/ISCIII/FIS/PI13-02359
Financiación: info:eu-repo/grantAgreement/ES/RETICS-ISCIII-ERDF/RD16-0022

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Enfermería (Dpto. Fisiatría y Enfermería)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)
Área (Departamento): Área Pediatría (Dpto. Microb.Ped.Radio.Sal.Pú.)