Sports injury prevention in youth football

INTERVENTION: Participating football clubs will be randomised into the intervention or control group. The intervention group will do a comprehensive warm‐up programme designed to prevent sports injuries before football training sessions 2‐3 times per week. The control group will be asked to do their usual training. The warm‐up programme contains six different exercises with progression focusing on young players movement control, especially on core stability, knee control and ankle/foot function: 1. General warm‐up exercise 2. Hip muscle exercise 3. Plank exercise 4. Single leg balance exercise 5. Single leg strengthening exercise 6. Single leg plyometric exercise CONDITION: Sports injuries ; Injury, Occupational Diseases, Poisoning PRIMARY OUTCOME: Football related acute and overuse lower limb injuries. Data will be collected prospectively during the intervention period using weekly text messaging: Players/parents will respond to standardised text message question, followed by individual injury interview SECONDARY OUTCOME: 1. Any other injuries; 2. Measured performance properties (strength, power, flexibility, agility, knee control, balance, aerobic fitness): Players will visit SHA before beginning of the intervention and during the spring of 2015. They will participate in performance tests during these SHA‐camps; 3. Compliance: Individual participation on the intervention sessions will be registered by the coach on a player attendance form. INCLUSION CRITERIA: 1. Registered at the SHA 2. Willing to patricipate in the study 3. Female and male players aged 10‐14 years