Resumen
Objetivo: el objetivo del presente estudio fue verificar la variabilidad de la frecuencia cardíaca (VFC) de niños y adolescentes según el estado nutricional (IMC) y el nivel de condición física. Metodología: El presente estudio tuvo un diseño transversal, conformado por 52 adolescentes, de ambos sexos (48% niñas), con edades entre 10 y 17 años. La masa corporal se evaluó mediante una báscula digital electrónica, la circunferencia de la cintura mediante una cinta inelástica y el porcentaje de grasa estimado (%GC) mediante una ecuación de pliegues cutáneos mediante un adipómetro. La maduración somática se estimó utilizando la fórmula de Velocidad Máxima de Crecimiento (PVC). La aptitud cardiorrespiratoria (CRF) se evaluó mediante la prueba de ejercicio submáximo en cinta rodante y la VFC mediante un monitor de frecuencia cardíaca durante 10 minutos en reposo. Resultados: No hubo diferencias estadísticamente significativas en los parámetros de VFC entre los grupos obesos y eutróficos. Sin embargo, al dividir según ACR, se encontró que los adolescentes obesos con menor ACR tenían valores más bajos de RMSSD (p<0,05), SD1 (p<0,05) y SD2 (p<0,01) en comparación con las personas obesas con niveles más altos de ACR. Conclusión: Los niveles bajos de ACR pueden provocar disfunción autonómica cardíaca en adolescentes independientemente de la presencia de obesidad.
Citas
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