Soccer is currently the most popular sport played in the world. The high incidence of injury in youth soccer is a growing concern. Ankle sprains account for approximately 20% of all injuries in youth soccer players. This study examined whether hip muscle strength is a risk factor for sustaining a lateral ankle sprain among youth soccer players.

This prospective study included youth soccer players who played in the national league of their respective age category. Data collected including demographic, anthropometric and hip strength. Isometric hip strength was measured for the flexors, extensors, abductors, adductors and external/internal rotators. Injuries were monitored by the team′s medical staff, and defined as that which prohibited the player from participating in practices or games for at least 48 hours.

Of the 133 players followed, 12 sustained a lateral ankle sprain, representing 18% of all injuries. These injuries resulted in a mean time lost of 22.4 days. An adjusted multivariate regression model revealed that players with greater hip extension muscle forces had a lower risk of lateral ankle sprain (P＝0.028).

This prospective study of youth soccer players found that hip muscle extension force was significantly associated with a reduced risk of lateral ankle sprain.