In an accompanying editorial, John Brooks an injury expert for the Rugby Football Union, says that people participating in any sport at all levels should adopt a warm-up programme like this to reduce injury. Previous studies investigating the effect of warming up on the risk of injury have focused on key warm-up elements—raising the core temperature, stretching the muscles used, and conducting movement specific exercises—but the effect on injury has been unclear until now.

Torbjørn Soligard and colleagues recruited 1,892 female footballers from Norway between the ages of 13󈝽 and randomised them to perform either traditional warm-up exercises (1, 055) or the "11+" 20 minute warm-up intervention (837).

The "11+" 20 minute warm-up programme consists of slow and speed running, key exercises to improve strength and balance, and movements that focus on core stability, hip control and knee alignment. The whole programme emphasises the importance of internal muscular awareness.

The researchers reported no significant difference in the number of lower leg injuries between the groups, but substantially fewer severe injuries, overuse injuries and overall injuries were found in the intervention group.

Compliance with the study was boosted by providing coaches and players with a DVD showing all the exercises, posters and exercise cards, and step by step cards.

The authors conclude by calling for the programme to be implemented as a key element of coaching, education and training in football.

In the editorial, Brooks points out that one of the most important findings of this study is that teams using the "11+" programme sustained a lower incidence of severe injuries—it is these severe injuries which cause the most absence from sport, interfere with people's lives and place the greatest burden on scarce medical resources.

Not every participant in the study performed the "11+" throughout the season as recommended, so the programme may reduce the injury even more with regular use. Health professionals should encourage anyone involved in sport to participate in similar warm-up programmes, Brooks concludes.

Source: British Medical Journal