Table 4.
Frequency and Incidences per Squad-Season of Injuries by Location According to Skeletal Maturity Status
| Late | Normal | Early | Mature | Overall | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Body part | Total, | Time-loss, | Total, | Time-loss, | Total, | Time-loss, | Total, | Time-loss, | Total, | Time-loss, |
| n (%)a | n (%) [Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%) | |
| Ankle | 7 (21.9) | 5 (26.3) [12.5] | 48 (10.8) | 38 (12.6) [6.0m] | 84 (12.1) | 62 (15.2) [8.1] | 57 (14.4) | 41 (20.0) [10.9n] | 196 (12.5) | 146 (15.6) |
| Knee | 7 (21.9) | 4 (21.1) [10.0] | 79 (17.7) | 55 (18.3) [8.7] | 83 (12.0) | 54 (13.2) [7.0] | 56 (14.2) | 32 (15.6) [8.5] | 225 (14.4) | 145 (15.5) |
| Pelvis/hip/groin | 2 (6.3) | 2 (10.5) [5.0] | 52 (11.7) | 37 (12.3) [5.9] | 84 (12.1) | 61 (15.0) [7.9] | 42 (10.6) | 28 (13.7) [7.4] | 180 (11.5) | 128 (13.7) |
| Hamstring | 3 (9.4) | 3 (15.8) [7.5] | 39 (8.7) | 28 (9.3) [4.4] | 57 (8.2) | 41 (10.0) [5.3] | 36 (9.1) | 23 (11.2) [6.1] | 135 (8.6) | 95 (10.2) |
| Quadriceps | 3 (9.4) | 1 (5.3) [2.5] | 40 (9.0) | 33 (11.0) [5.2] | 72 (10.4) | 40 (9.8) [5.2] | 38 (9.6) | 15 (7.3) [4.0] | 153 (9.8) | 89 (9.5) |
| Foot/toes | 2 (6.3) | 1 (5.3) [2.5] | 45 (10.1) | 32 (10.6) [5.1] | 59 (8.5) | 35 (8.6) [4.6] | 33 (8.4) | 13 (6.3) [3.5] | 139 (8.9) | 81 (8.7) |
| Adductor | — | — | 14 (3.1) | 11 (3.7) [1.7m] | 33 (4.8) | 25 (6.1) [3.3] | 33 (8.4) | 20 (9.8) [5.3n] | 80 (5.1) | 56 (6.0) |
| Abdomen/lumbar spine | — | — | 23 (5.2) | 16 (5.3) [2.5] | 37 (5.3) | 22 (5.4) [2.9] | 17 (4.3) | 5 (2.4) [1.3] | 77 (4.9) | 43 (4.6) |
| Lower leg | 1 (3.1) | — | 30 (6.7) | 18 (6.0) [2.8] | 42 (6.1) | 14 (3.4) [1.8] | 22 (5.6) | 6 (2.9) [1.6] | 95 (6.1) | 38 (4.1) |
| Calf/Achilles tendon | 2 (6.3) | 1 (5.3) [2.5] | 15 (3.4) | 6 (2.0) [0.9] | 45 (6.5) | 16 (3.9) [2.1] | 20 (5.1) | 4 (2.0) [1.1] | 82 (5.2) | 27 (2.9) |
| Hand/fingers | — | — | 23 (5.2) | 8 (2.7) [1.3] | 29 (4.2) | 10 (2.5) [1.3] | 14 (3.5) | 7 (3.4) [1.9] | 66 (4.2) | 25 (2.7) |
| Forearm/wrist | — | — | 8 (1.8) | 7 (2.3) [1.1] | 14 (2.0) | 7 (1.7) [0.9] | 5 (1.3) | 4 (2.0) [1.1] | 27 (1.7) | 18 (1.9) |
| Head/face | — | — | 5 (1.1) | 1 (0.3) [0.2e] | 16 (2.3) | 10 (2.5) [1.3n] | 1 (0.3) | 1 (0.5) [0.3] | 22 (1.4) | 12 (1.3) |
| Shoulder/clavicle | 2 (6.3) | 1 (5.3) [2.5m] | 7 (1.6) | 3 (1.0) [0.5] | 13 (1.9) | 4 (1.0) [0.5] | — | — | 22 (1.4) | 8 (0.9) |
| Thigh | 2 (6.3) | 1 (5.3) [2.5e] | 6 (1.3) | 3 (1.0) [0.5] | 5 (0.7) | 1 (0.2) [0.1l] | 10 (2.5) | 3 (1.5) [0.8l] | 23 (1.5) | 8 (0.9) |
| Ribs/thoracic spine | — | — | 7 (1.6) | 3 (1.0) [0.5] | 9 (1.3) | 2 (0.5) [0.3] | 6 (1.5) | 2 (1.0) [0.5] | 22 (1.4) | 7 (0.8) |
| Elbow | 1 (3.1) | — | 1 (0.2) | — | 5 (0.7) | 3 (0.7) [0.4] | 3 (0.8) | 1 (0.5) [0.3] | 10 (0.6) | 4 (0.4) |
| Neck/cervical spine | — | — | 4 (0.9) | 2 (0.7) [0.3] | 4 (0.6) | 1 (0.2) [0.1] | 2 (0.5) | — | 10 (0.6) | 3 (0.3) |
| Upper arm | — | — | — | — | 1 (0.1) | — | — | — | 1 (0.1) | — |
| Total | 32 (100) | 19 (100) [47.5] | 446 (100) | 301 (100) [47.6E,M] | 692 (100) | 408 (100) [53.1N] | 395 (100) | 205 (100) [54.5N] | 1565 (100) | 933 (100) |
aIncludes all medical attention and time-loss injuries. —, none.
bIncidence is expressed per squad-season and established for a squad of 25 players.
Significantly different from late maturers: LP < .001; lP < .05.
Significantly different from normal maturers: NP < .001; nP < .05.
Significantly different from early maturers: EP < .001; eP < .05.
Significantly different from mature: MP < .001; mP < .05.