Project Girls Football 2012 (Main project)

​The purpose of this projact is to investigate the injury pattern in adolescent girls' soccer and the risk factors associated with injury.

Principal investigators: Mette Zebis and Kristian Thorborg

Students involved: Mikkel Bek Clausen, Merete Møller, Lars Tang, Nikolaj Lund, Annelisa Møss

Principal supervisors: Mette Zebis and Kristian Thorborg

Co-supervisor(s): Lars Andersen, Peter Krustrup, Niels Wedderkopp,

Research initiative: Mette Zebis, Kristian Thorborg, Peter Krustrup

Time frame: 2012-


Female soccer is an increasingly popular sport with an estimated 26 million players worldwide. Regular physical activity, such as soccer has important health-benefits including reduced risk of obesity and diabetes. However, soccer also includes an inherent risk of injury, and the injury incidence as well as severity of injuries among adolescent female soccer players have been reported to be of major concern. Prior studies have reported the injury incidence in adolescent female soccer by use of traditional prospective registration by coach or medical staff. In recent years, injury and exposure data collected using text-messaging (SMS) has been proved to capture more than twice the number of injuries than traditional methods. Previous reports may therefore have underestimated injury incidence in female adolescent soccer. Finally, risk factors associated with injuries have not yet been investigated in a population of adolescent female soccer players. Thus, important knowledge in respect to optimal injury prevention is lacking among young female soccer players known to be at high risk of sustaining injuries.     


To investigate 1) the injury pattern in adolescent girls' soccer and 2) risk factors associated with injury.

Experimental approach

The present study includes 500 girls aged 15-18 years. All included players report soccer related injuries and exposure weekly by answering pre-coded SMS questions during one season. Injury location and type are further classified by individual phone calls. Injury-rates are calculated as the number of injuries divided by the total exposure. Additionally, a baseline physical performance test battery is performed including endurance, sprint, jump and flexibility tests. Finally, self-reported health, physical capacity, and injury history will be evaluated by use of an online questionnaire, and self-reported hip- and knee function will be scored by use of two validated questionnaires, KOOS and HAGOS. A priori, soccer-exposure, playing-level, baseline physical capacity, self-reported hip and knee function and injury history are chosen as independent variables.  

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