Severity, lay-off and injury burden for the most common ankle injury types in male professional football
| 0–3 days* | 4–7 days* | 8–28 days* | >28 days* | Mean lay-off† | SD | Median lay-off† | IQR | Injury burden‡ | |
|---|---|---|---|---|---|---|---|---|---|
| All ankle injuries | 270 | 311 | 360 | 139 | 15.9 | 27.1 | 7 | 13 | 16.3 |
| Fractures | 0 | 0 | 3 | 15 | 89.6 | 52.0 | 87 | 70 | 1.5 |
| Sprain/ligament injury | 141 | 212 | 279 | 97 | 15.4 | 20.5 | 8 | 15 | 10.6 |
| Capsular | 29 | 27 | 9 | 2 | 7.3 | 13.3 | 4 | 3 | 0.5 |
| Lateral | 100 | 157 | 233 | 62 | 14.7 | 19.2 | 8 | 14 | 7.7 |
| Medial | 11 | 26 | 26 | 9 | 13.6 | 15.4 | 7 | 12 | 0.9 |
| High | 1 | 2 | 11 | 24 | 43.2 | 33.0 | 34 | 37 | 1.6 |
| Contusion | 84 | 61 | 33 | 4 | 6.2 | 10.3 | 4 | 5 | 1.1 |
| Synovitis | 22 | 17 | 20 | 6 | 16.0 | 39.6 | 7 | 11 | 1.0 |
| Impingement | 11 | 8 | 9 | 4 | 12.1 | 16.4 | 6.5 | 8 | 0.4 |
| Anterior | 1 | 1 | 3 | 2 | 24.0 | 24.7 | 11 | 41 | 0.2 |
| Posterior | 10 | 7 | 6 | 2 | 8.8 | 11.9 | 5 | 7 | 0.2 |
*Injury severity is categorised according to lay-off days as slight/minimal (0–3), mild (4–7), moderate (8–28) and severe (>28).
†Lay-off is expressed in days.
‡Injury burden expressed as the number of lay-off days per 1000 h.