Prevalence of training-related ECG changes as per 2010 ESC criteria and the Seattle Criteria in 1078 elite athletes
| n (%) | |
|---|---|
| Group 1 ECG changes ESC criteria 2010 | |
| Sinus bradycardia | 582 (54) |
| Sinus arrhythmia | 222 (20.6) |
| First degree AV block | 81 (7.5) |
| Mobitz type 1 2nd degree AV block | 1 (0.1) |
| Incomplete RBBB | 308 (28.6) |
| Early repolarisation pattern | 414 (38.4) |
| LVH on voltage criteria | 304 (28.2) |
| Romhilt-Estes score ≥5 | 134 (12.4) |
| ≥1 group 1 change | 937 (86.7) |
| ≥2 group 1 changes | 615 (57) |
| Training related ECG changes Seattle Criteria 2013 As above, plus | |
| Low atrial rhythm | 12 (1) |
| Junctional escape rhythm | 4 (0.4) |
| Isorhythmic dissociation | 12 (1.1) |
AV, atrioventricular; ESC, European Society of Cardiology; LVH, left ventricular hypertrophy; RBBB, right bundle branch block.