Electrocardiographic data at rest in athletes (n = 79) and sedentary subjects (n = 34)
| Normal | LAD<−30° | LAD>−30° | RBBB | AVB I | AVBII | PVB | VRA | |
|---|---|---|---|---|---|---|---|---|
| Values in parentheses are percentages. One athlete showed VRA with a slight LAD. One athlete showed increased PR interval duration with slight LAD. One athlete showed RBBB with distinct LAD. | ||||||||
| LAD<−30, Left QRS axis deviation less than −30°; LAD>−30°, left QRS axis deviation more than −30°; RBBB, right bundle branch block; AVB I, first degree atrioventricular block; AVB II, second degree atrioventricular block; PVB, premature ventricular beats; VRA, ventricular repolarisation abnormalities. | ||||||||
| Athletes | 26 (33) | 13 (16) | 2 (2) | 3 (4) | 4 (6) | 1 (1) | 3 (4) | 2 (2) |
| Sedentary subjects | 9 (26) | 3 (9) | 0 | 1 (3) | 0 | 0 | 3 (9) | 2 (6) |