Fat-free mass and maturity status are determinants of physical fitness performance in schoolchildren and adolescents

Pezoa-Fuentes, Paz; Cossio-Bolanos, Marco; Urra-Albornoz, Camilo; Alvear-Vasquez, Fernando; Lazari, Evandro; Urzua-Alul, Luis; de Campos, Luis Felipe Castelli Correia; Gomez-Campos, Rossana

Abstract

Objectives: The objective of the study was to verify whether (FFM), maturity status (MS) and chronological age (CA) are determinants of physical fitness performance, and to analyze FFM and physical performance aligned by CA and MS in children and adolescents.Methods: A descriptive correlational study was carried out in 863 schoolchildren. Weight, height, and waist circumference (WC) were evaluated. Body mass index (BMI), FFM, fat mass (FM), MS (Age at peak height velocity, APHV) were calculated. The physical tests of velocity 20 m, agility 5 m x 10rep, and horizontal jump (HJ) were evaluated.Results: The APHV was estimated in boys at 14.0 +/- 0.36APHV and in girls at 11.96 +/- 0.49APHV. The relationships between CA and APHV with FFM was r = 0.80 in boys and r = 0.44 to 0.45 in girls. The relationships between FFM and physical tests in boys were [HJ (r = 0.70), agility 5m x 10rep (r =-0.68), velocity (r =-0.61)] and in girls [HJ (r = 0.42), agility 5m x 10rep (r =-0.52), velocity (r =-0.20)]. The differences in FFM and physical fitness tests were more pronounced when aligned by APHV than by CA.Conclusion: It was verified that both FFM, CA, and APHV are determinants of physical fitness per-formance. In addition, the APHV should be introduced in physical education as a means of rank-ing physical performance among schoolchildren.(c) 2022 Published by Elsevier Editora Ltda. on behalf of Sociedade Brasileira de Pediatria. This is

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Título según WOS: ID WOS:000934044800001 Not found in local WOS DB
Título de la Revista: JORNAL DE PEDIATRIA
Volumen: 99
Número: 1
Editorial: SOC BRASIL PEDIATRIA
Fecha de publicación: 2023
Página de inicio: 38
Página final: 44
DOI:

10.1016/j.jped.2022.03.007

Notas: ISI