Purpose: 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. Methods: Fifteen elite female soccer players and 45 professional female dancers (15 ballet, 15 modern, and 15 Korean dancers) were recruited to participate in this study. ACL injury risk factors were obtained from motion and ground reaction force data. Two-way repeated measure of analyses of variance (participant groups and landing tasks, 4 × 2) were used. Results: 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. Conclusion: 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.
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