Sex-related differences in left ventricular structure in early adolescent non-professional athletes.
Eur J Prev Cardiol
; 23(7): 777-84, 2016 May.
Article
en En
| MEDLINE
| ID: mdl-26405258
ABSTRACT
BACKGROUND:
Professional athletes exhibit lower left ventricular wall thicknesses, diameters and mass (in females), with less frequent training-related electrocardiogram (ECG) changes, as compared with controls.METHODS:
We studied the association of sex with left ventricular structure in trained early adolescents. Two hundred and six adolescent Caucasian athletes (mean age 13.8 ± 1.6, range 11.8-16.9 years, 158 males and 48 females), with similar degree of training underwent ECG and echocardiographic measurements of left ventricular diameters, thicknesses and mass, with relative wall thickness as the remodelling index.RESULTS:
As compared with females, males exhibited greater maximal wall thickness (males = 8.7 ± 1.2 vs. females = 7.9 ± 0.8) and indexed left ventricular mass (100 ± 18 g/m(2) vs. 79 ± 12, p < 0.001), without differences in relative wall thickness (males = 0.35 ± 0.04 vs. females = 0.34 ± 0.04) and with higher prevalence of ECG-based left ventricular hypertrophy, sinus bradycardia and ST-elevation. An analysis of covariance, using age, body surface area, systolic blood pressure, heart rate and sex as the covariates, reported that sex is a strong predictor of left ventricular mass, maximal wall thickness, left ventricular diastolic diameter and ECG-based left ventricular hypertrophy. In a binary logistic regression model analysis sex, like left ventricular mass, predicted ST-trait elevation.CONCLUSIONS:
Our results suggest that, in early adolescence, female athletes have lower left ventricular mass and thicknesses compared with males, without geometrical differences. Therefore, sex, independent of age, is a strong determinant of structural parameters also in early adolescent athletes. These data indicate that sex-specific parameters are needed in the pre-participation cardiovascular screening of adolescent athletes.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Resistencia Física
/
Ecocardiografía
/
Tamizaje Masivo
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Función Ventricular Izquierda
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Hipertrofia Ventricular Izquierda
/
Atletas
/
Ventrículos Cardíacos
Tipo de estudio:
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Límite:
Adolescent
/
Child
/
Female
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Humans
/
Male
País/Región como asunto:
Europa
Idioma:
En
Revista:
Eur J Prev Cardiol
Año:
2016
Tipo del documento:
Article
País de afiliación:
Italia