Average 2-weekly prevalence of all and substantial knee-related, back-related and hip-related overuse injuries
| Overall (n=26) | Technique Specialists (n=15) | Speed Specialists (n=11) | |
| Knee | |||
| All (%) | 28.7 (24.9 to 32.5) | 30.6 (25.9 to 35.4) | 26.0 (18.9 to 33.1) |
| Substantial (%) | 4.4 (1.9 to 7.0) | 3.8 (1.2 to 6.4) | 5.2 (1.6 to 8.9) |
| Back | |||
| All (%) | 20.5 (16.0 to 25.0) | 29.8 (25.5 to 34.0) | 7.9 (1.7 to 14.1) |
| Substantial (%) | 0.0 (0.0 to 0.0) | 0.0 (0.0 to 0.0) | 0.0 (0.0 to 0.0) |
| Hip | |||
| All (%) | 10.5 (8.4 to 12.6) | 12.5 (9.0 to 15.9) | 7.8 (5.2 to 10.3) |
| Substantial (%) | 2.7 (0.6 to 4.9) | 1.0 (-0.9 to 2.8) | 5.2 (1.6 to 8.8) |
Data are expressed as mean values with 95% CI in parenthesis. Overuse injuries were defined as substantial if they led to moderate or severe reduction in sports performance or participation, or time loss (ie, option 3, 4, 5 in either question 2 or 3 of the OSTRC questionnaire).16
OSTRC, Oslo Sports Trauma Research Centre.