Free Communications, Oral Presentations: ACL Risk Factors.

The article presents oral presentations on anterior cruciate ligament risk factors. Predictors of Peak Proximal Anterior Tibial Shear Force During a Jump-Landing Task, by D. A. Padua, S. W. Marshall, A. I. Beutler, M. DeMaio, B. P. Boden, B. Yu and W. E. Garrett that described excessive peak proximal anterior tibial shear force as a potential risk factor for anterior cruciate ligament injury. The Effects of Menstrual Cycle on Dynamic Knee Joint Laxity During a Drop Landing, by B. R. Cowin, N. W. Burnett, M. L. Cordova, A. Finch, J. B. Brucker and J. R. Slauterbeck that evaluated the effects of menstrual cycle phases and knee joint position on dynamic knee joint stability during a drop landing. Effects of Increased Body Mass Index (BMI) on Lower Extremity Motion Patterns in a Stop-Jump Task, by C. N. Brown, B. Yu, D. T. Kirkendall and W. E. Garrett that tested the effects of increased BMI on lower extremity kinematics and kinetics of male and female recreational athletes performing a stop-jump task. Effects of Trunk Kinematics on Knee Joint Kinetics, Kinematics, and Extensor EMG, by J. T. Blackburn that defined the relationships between trunk and knee kinematics, kinetics and quadriceps electromyography (EMG) during landing, and the effect of active trunk flexion during landing on these variables in an effort to identify potential anterior cruciate ligament injury mechanisms.