Investigation of changes in electrocardiography before and after free diving

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Turkish Journal of Clinics and Laboratory, vol.11, no.2, pp.56-60, 2020 (Peer-Reviewed Journal) identifier


Aim: To evaluate the electrocardiographic (ECG) parameters and hemodynamic parameters in predicting the developmentof arrhythmias after free diving static apnea performance and maximum breath hold.Material and Methods: Twenty-four volunteer athletes participating in the free diving competition in 2015 (19 males(79.2%) and 5 females (20.8%)) were included in the study. Peripheral O2 saturation (SpO2), heart rate (HR), ECG parameters(PR interval, QRS time, T wave amplitude, corrected QT time, presence of bandle branch block and new bandle branchblock development, atrial premature beats, ventricular premature beats) were analyzed.Results: There was no statistically significant difference between before static apnea measurements (systolic bloodpressure (SBP) 124.7 ± 10.8 mmHg, diastolic blood pressure (DBP) 76.5 ± 6.7 mmHg, heart rate (HR) 80.2 ± 13.4 beats / min,SpO2 97.1 ± 0.9%) and after performance (SBP 128.8 ± 13.6 mmHg DBP 78.0 ± 5.9 mmHg, HR 85.8, ± 16.5 beats / min andSpO2 96.7 ± 2.3%)(p = 0.175; p = 0.334; p = 0.104; p = 0.336, respectively).Conclusion: No significant changes were observed in ECG parameters, heart rate, saturation and blood pressure valuesevaluated after static apnea performance. These findings can be used to support that the risk of arrhythmia during staticapnea does not persist after apnea has ended.