Figure 2.

(A) Illustration of the external knee abduction moment (KAM) and technique variables described at initial contact; (B) cut width; (C) hip abduction; (D) foot progression angle; (E) trunk rotation and hip internal rotation; (F) trunk lateral flexion and knee valgus; (G) knee flexion and foot strike angle; (H) cut angle. Additional technique factors were trunk rotation angular velocity, horizontal center of mass (CoM) velocity, resultant CoM velocity and its anteriorly-, laterally-, and vertically-directed components, and contact time.