Assess advanced knowledge of the multifactorial causes and biomechanical risk factors for non-contact ACL injuries in female adolescent athletes. The quiz will require analysis of anatomical (e.g., Q-angle, femoral notch, ligament laxity), hormonal (e.g., menstrual cycle, estrogen effects), and neuromuscular contributors (e.g., hip weakness, dynamic knee valgus, hamstring/quadriceps imbalance), as well as movement biomechanics during cutting, pivoting, and landing, external modifiers (training load, fatigue, footwear, surface), and screening/assessment tools. Items will ask takers to interpret kinematic/kinetic data, distinguish modifiable vs non-modifiable risks, evaluate prevention strategies, and critique relevant research evidence.