Table 3.
Most commonly injured body parts and most common type of acute and overuse injuries in young female footballers according to use of warm-up exercise programme (intervention). Values are numbers (percentages) of injuries unless otherwise indicated. Incidence is reported as number of injuries per 1000 player hours, with standard errors
| Intervention group (n=1055) | Control group (n=837) | Rate ratio (95% CI)* | P value (z test) | ||||
|---|---|---|---|---|---|---|---|
| Injuries | Incidence | Injuries | Incidence | ||||
| Body category: | |||||||
| Knee | 35 (21.7) | 0.7 (0.1) | 58 (27.0) | 1.3 (0.2) | 0.55 (0.36 to 0.84) | 0.005 | |
| Ankle | 51 (31.7) | 1.0 (0.1) | 52 (24.2) | 1.1 (0.2) | 0.89 (0.61 to 1.31) | 0.562 | |
| Leg | 14 (8.7) | 0.3 (0.1) | 22 (10.2) | 0.5 (0.1) | 0.58 (0.30 to 1.13) | 0.111 | |
| Anterior thigh | 9 (5.6) | 0.2 (0.1) | 9 (4.2) | 0.2 (0.1) | 0.91 (0.36 to 2.29) | 0.842 | |
| Posterior thigh (hamstring) | 5 (3.1) | 0.1 (0.0) | 8 (3.7) | 0.2 (0.1) | 0.57 (0.18 to 1.74) | 0.322 | |
| Hip/groin | 10 (6.2) | 0.2 (0.1) | 9 (4.2) | 0.2 (0.1) | 1.01 (0.41 to 2.49) | 0.984 | |
| Acute injuries: | |||||||
| Sprains | 65 (47.8) | 1.3 (0.2) | 76 (46.6) | 1.7 (0.2) | 0.78 (0.56 to 1.08) | 0.139 | |
| Strains | 25 (18.4) | 0.5 (0.1) | 28 (17.2) | 0.6 (0.1) | 0.81 (0.47 to 1.39) | 0.453 | |
| Contusions | 16 (11.8) | 0.3 (0.1) | 33 (20.2) | 0.7 (0.1) | 0.44 (0.24 to 0.80) | 0.007 | |
| Fractures | 14 (10.3) | 0.3 (0.1) | 7 (4.3) | 0.2 (0.1) | 1.82 (0.74 to 4.51) | 0.194 | |
| Overuse injuries: | |||||||
| Lower extremity tendon pain | 11 (44.0) | 0.2 (0.1) | 21 (40.4) | 0.5 (0.1) | 0.48 (0.23 to 0.99) | 0.047 | |
| Low back pain | 1 (3.4) | 0.0 (0.0) | 8 (14.3) | 0.2 (0.0) | 0.11 (0.01 to 0.91) | 0.040 | |
| Anterior lower leg pain (periostitis) | 9 (36.0) | 0.2 (0.1) | 12 (23.1) | 0.3 (0.1) | 0.68 (0.29 to 1.62) | 0.384 | |
*Rate ratio obtained from Poisson model.