2022, Number 4
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CorSalud 2022; 14 (4)
Electrocardiographic findings in adolescents practicing sports with high static component
Carmona PR, Morales AY, Rabassa López-Calleja MA, Lorenzo ME
Language: Spanish
References: 34
Page: 332-341
PDF size: 493.94 Kb.
ABSTRACT
Introduction: Cardiovascular modifications in the athlete are related to static (SC) and dynamic components. Their relationship with the athlete's electrocardiogram has been little explored.
Objective: To characterize the electrocardiogram of adolescent athletes with high static component.
Method: Between January and March 2019, 101 adolescents practicing sports with high static component were randomly selected in Villa Clara province, Cuba. All of them had a healthy heart evaluated by echocardiography, and a 12-lead electrocar-diogram was performed for subsequent analysis.
Results: The mean P-wave dispersion was high (56.6±21.6 ms), unrelated to the type of exercise component. The P-wave voltage in lead II was higher in the high static component (low: 1.2±0.4 mV; medium: 1.3±0.6 mV; high: 1.9±0.3 mV; p<0.001). Nor-mal electrocardiographic findings were present in 93.1% of the athletes, where early repolarization was the most frequent (71.3%). The 63.3% of the athletes showed a QT interval dispersion ≥ 65 ms.
Conclusions: Most athletes presented normal electrocardiographic findings, accord-ing to the current classification. P-wave dispersion was found to be increased. P-wave voltage in lead II was higher in athletes with high static component. Most ath-letes had QT interval dispersion values above normal limits.
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