Background: Lower extremity injuries are common in high school sports and are costly, and
some have poor outcomes. The FIFA 11+ injury prevention program has been shown to
decrease injuries in elite athletes by up to 72%. Hypothesis: High schools in which coaches
implement the FIFA 11+ injury prevention program in their athletic programs will have a
decreased incidence of lower extremity injuries compared with schools using their usual
prepractice warm-up. Study Design: Randomized controlled trial; Level of evidence, 1 …

The authors convey their response to a feedback about their study on the implementation of
the FIFA 11+ injury prevention program by high school athletic teams to reduce lower
extremity injuries. Topics mentioned include the efficacy of the program for preventing
anterior cruciate ligament injuries in collegiate soccer athletes, the goal of the original
program to prevent the most frequent types of injuries in football, and the categorization of
injuries into fractures, contusions, and strains.