Sidestep cutting technique and knee abduction loading: implications for ACL prevention exercises

Area of Science:

• Biomechanics
• Sports Medicine
• Injury Prevention

Background:

• Anterior cruciate ligament (ACL) injuries are common in sports requiring cutting maneuvers.
• Understanding the biomechanics of sidestep cutting is crucial for developing effective injury prevention strategies.
• Current prevention programs aim to mitigate harmful joint loading during these movements.

Purpose of the Study:

• To investigate how different sidestep cutting techniques influence maximum knee abduction moments.
• To identify specific technique factors that contribute to high knee abduction loads.
• To inform the development of targeted interventions for ACL injury prevention.

Main Methods:

• A cross-sectional study involving 123 female handball players.
• Analysis of whole-body kinematics and knee joint kinetics during sidestep cutting.
• Linear regression to correlate technique factors (cut width, knee valgus, landing) with knee abduction moments.

Main Results:

• Sidestep cutting technique factors explained 62% of the variance in knee abduction moments.
• Key predictors included cut width, knee valgus, toe landing, approach speed, and cutting angle.
• The moment arm of the ground reaction force was a more significant contributor than its magnitude.

Conclusions:

• Narrow cuts, reduced knee valgus, and toe landings are associated with lower knee abduction loads.
• These technique modifications can be incorporated into ACL injury prevention programs.
• Targeting these modifiable factors may reduce the risk of ACL injuries in athletes.