The athlete’s heart: maximum heart rate and ECG

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Abstract

The article discusses the model of an "ideal" or "proper" ECG, depending on the zones of training exercises for an "athlete’s" heart. Aim. To develop a model of an "ideal" or "proper" ECG for description of the electrical systole and diastole of the atria and ventricles from HRmin = 40 bpm to HRmax = 200 bpm. Results. The duration of P-Q, Q-T, T-P and R-R intervals, P-Q and S-T segments, QRS complex, P and T peaks, presented in the model of "perfect" or "corrected" ECG are discussed depending on heart rate, zones of training exercises of aerobic and anaerobic power, left ventricular ejection fraction, mechanism of ATP resynthesis, oxygen consumption and respiratory exchange ratio. Conclusion. The presented model of the “ideal” or “proper” ECG from resting heart rate (HR = 70 bpm) to maximum heart rate (HR = 200 bpm) corresponds to all physiological ECG limits for each zone of training exercises of aerobic and anaerobic power. The minimal values of the S-T segment (0-1 ms) and the T-P interval (0-1 ms) determine the maximal heart rate.

Key words: athlete’s" heart, ECG, maximal heart rate.

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