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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Ventricular Mass in Relation to Body Size, Composition, and Skeletal Age in Adolescent Athletes

2013; Lippincott Williams & Wilkins; Volume: 23; Issue: 4 Linguagem: Inglês

10.1097/jsm.0b013e318280ac63

ISSN

1536-3724

Autores

João Valente‐dos‐Santos, Manuel J. Coelho‐e‐Silva, Vasco Vaz, António J. Figueiredo, Joaquim Castanheira, Neiva Leite, Lauren B. Sherar, Adam Baxter‐Jones, Marije T. Elferink‐Gemser, Robert M. Malina,

Tópico(s)

Sports injuries and prevention

Resumo

To examine the contribution of chronological age (CA), skeletal age (SA), stature, sitting stature, fat-free mass (FFM), and fat mass (FM) to interindividual variability in left ventricular mass (LVM) in male adolescent roller hockey players using allometric models.Cross sectional.Training and competitive sport during adolescence.Seventy-three Portuguese male roller hockey players aged 14.5 to 16.5 years.Stature, sitting stature, body mass, estimated FM and FFM, and SA assessed by the Fels method.Allometric modeling of LVM assessed in accordance with recommendations of the American Society of Echocardiography.Hockey players (CA: 15.4 ± 0.6 years; SA: 16.4 ± 1.5 years) showed an eccentric remodeling of LV structure within the reference range (ie, 0.24-0.42), a dilated LV chamber, but no LVM increase. Exponents for body size descriptors were 2.69 for stature (R(2) = 27%; P < 0.001), 2.49 for sitting stature (R(2) = 37%; P < 0.001), 0.76 for FFM (R(2) = 31%; P < 0.001), and 0.22 for FM (R(2) = 26%; P < 0.001). The combination of size descriptors with CA and SA increased the explained variance in LVM slightly (26%-45%).When stature and FM are used for indexing LVM in a sample of adolescent athletes, biological maturity status should also be considered.

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