Why the study?
Basic resting ECG changes from intense exercise characterize the athlete's heart, but detailed short-term ECG analysis was needed to evaluate electrocardiographic, heart rate variability, and ventricular heterogeneity changes relative to factors influencing sports adaptation.
Does regular intense exercise alter standard ECG, heart rate variability, and QRST integral parameters compared to non-athlete controls?
Population
500 healthy athletes and 100 non-athlete controls
Comparison
Athletes vs non-athlete controls
Design
Cross-sectional comparative study
Key result
Athletic training was associated with significant electrocardiographic changes compared to controls, including lower resting heart rate (68 vs 82 BPM, p<0.001) and increased T-wave amplitude.
Authors
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Short 1-min lead I ECG detects athlete ECG/HRV differences; leaves open its role for longitudinal adaptation monitoring.
Cross-Sectional (n=600)
Does regular intense exercise alter standard ECG, heart rate variability, and QRST integral parameters compared to non-athlete controls?
Absolute Event Rate: 68% vs 82%
p-value: p=< 0.001
A 1-minute lead I ECG recording can effectively detect electrical and heart rate variability differences characteristic of athletic cardiac adaptation compared to non-athletes.
Boroncsok et al. (2026) conducted a cross-sectional in Sports adaptation in healthy athletes (n=600). Athletic training (regular intense exercise) vs. Non-athlete controls was evaluated on Resting heart rate (BPM) (p=< 0.001). Athletic training was associated with significant electrocardiographic changes compared to controls, including lower resting heart rate (68 vs 82 BPM, p<0.001) and increased T-wave amplitude.