Heart Rate-170: ECG and echocardiography

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Abstract

The article discusses the model of an “ideal” or “proper” ECG depending on the periods and phases of the cardiac cycle at heart rate = 170 beats/min. Purpose of the study. Study the durations of the P-Q, Q-T, T-P and R-R intervals, P-Q and S-T segments, the QRS complex, P and T peaks, presented in the “ideal” or “proper” ECG model at heart rate-170 = 170 beats/min. Main part. The durations of the P-Q, Q-T, T-P and R-R intervals, P-Q and S-T segments, the QRS complex, P and T peaks were analyzed at heart rate = 170 beats/min depending on the periods and phases of the cardiac cycle. Conclusions. A decrease in the duration of the ventricular ejection and the ventricular filling is accompanied by a decrease in the duration of the ventricular systole and cardiac diastole (rapid and slow ventricular filling = atrial and ventricular diastole).

Key words: heart rate, ECG, echocardiography, athlete’s heart.

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