female athletes were included in this study. This study was derived as part of a larger study investigating the mechanisms underlying increased risk for knee injuries. The designation of multi-sport athletes and sport specialized athletes was based on self-reported sports participation. Each participant was asked to report their current sport participation, any additional sports participation and how many years they participated in each sport for both scholastic and recreational sports. There was no minimum number of years that an athlete had to participate to be included in the study but all athletes participated for at least one year. Athletes that reported participation in only one sport were assigned to the sport specialized group and those that reported participation in more than one sport were assigned to the multi-sport group.