1. LarwaJ, StoyC, ChafetzRS, BonielloM, FranklinC. Stiff landings, core stability, and dynamic knee valgus: a systematic review on documented anterior cruciate ligament ruptures in male and female athletes. Int J Environ Res Public Health. 2021;18(7):3826. doi: Larwa J, Stoy C, Chafetz RS, Boniello M, Franklin C . Stiff landings, core stability, and dynamic knee valgus: a systematic review on documented anterior cruciate ligament ruptures in male and female athletes . Int J Environ Res Public Health.