Differences in anterior cruciate ligament injury risk factors between female dancers and female soccer players during single- and double-leg landing

The purpose of this study was to compare anterior cruciate ligament (ACL) injury risk factors between female dancers and female soccer players during single- and double-leg drop landing vertical jump tasks. The female dancers landed with a significantly lower trunk flexion, trunk external rotation, knee external rotation, and knee valgus moment than the female soccer players. In addition, the single-leg drop landing task demonstrated higher trunk external rotation and knee valgus moment than the double-leg drop landing vertical jump task. The female dancers had lower ACL injury risk factors than the female soccer players during landing tasks. The single-leg drop landing task is statistically correlated with ACL injury risk factors compared with double-leg drop landing vertical jump task in all groups.