The Mediating Role of Lean Soft Tissue in the Relationship between Somatic Maturation and Bone Density in Adolescent Practitioners and Non-Practitioners of Sports
Metadatos
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MDPI
Materia
Bone health Youth Team sports Exercise
Fecha
2021Referencia bibliográfica
Agostinete, R.R.; Werneck, A.O.; Maillane-Vanegas, S.; Gracia-Marco, L.; Ubago-Guisado, E.; Constable, A.M.; Fernandes, R.A.; Vlachopoulos, D. The Mediating Role of Lean Soft Tissue in the Relationship between Somatic Maturation and Bone Density in Adolescent Practitioners and Non-Practitioners of Sports. Int. J. Environ. Res. Public Health 2021, 18, 3008. https://doi.org/10.3390/ ijerph18063008
Patrocinador
São Paulo Research Foundation (FAPESP) (FAPESP Process 2013/06963-5, 2015/13543-8, 2016/06920-2, 2017/09182-5, 2018/24164-6 and 2015/19710-3); FAPESP (2017/27234-2); FAPESP (2016/20354-0); “La Caixa” Foundation within the Junior Leader fellowship programme (ID 100010434; code LCF/BQ/PR19/11700007)Resumen
This study aimed to identify the mediating effect of lean soft tissue (LST) in the association
between somatic maturation and areal bone mineral density (aBMD) in adolescents by sex and
sport participation. The sample included 558 adolescents (401 males, mean age of 14.0 years) that
were practitioners of sports (11 sport modalities, n = 402) and a non-sport group (n = 157). Somatic
maturation was assessed by using a validated peak height velocity prediction equation. Dual-energy
X-ray absorptiometry (DXA) was used to assess aBMD (upper and lower limbs, spine and total body
less head—TBLH) and LST. For both sexes, LST mediated the association between somatic maturation
and aBMD at all skeletal sites (mediation percentage ranging from 36.3% to 75.4%). For sport and
non-sport groups, the LST also mediated the association between somatic maturation and aBMD at
all skeletal sites (mediation percentage ranging from 51.6% to 85.6%). The direct effect was observed
in all groups, except for lower limbs and TBLH in the non-sport group. The association between
somatic maturation and aBMD was mediated by LST in adolescents of both sexes and regardless of
involvement in organized sports. Our findings highlighted the role of improving LST to mitigate the
association of somatic maturation with aBMD.