A structured warm-up programme designed to improve awareness and knee and ankle control during landing and pivoting movements may halve the incidence of knee and ankle injuries among young people participating in sports. A cluster randomised controlled trial by Olsen and colleagues (p 449) compared the programme to no intervention in 1837 handball players aged 15-17. During the season, injury rates were significantly lower in the group that received the intervention (relative risk 0.53, 95% confidence interval 0.35 to 0.81).
Figure 1.
