Detecção dos fatores biomecânicos que influenciam a relação do ângulo de flexão de quadril e joelho durante o forward step down test: estudo transversal

Abstract

Introduction: Studies indicate that the relationship between hip / knee flexion angle may influence the occurrence of sports injuries (7,8). Given this, the Forward Step Down Test (FSDT) is used for the biomechanical analysis of these individuals during a sports gesture that simulates landing. Objective: To evaluate the influence of hip posterolateral complex strength, ankle dorsiflexion amplitude, internal hip rotation, pelvic fall angle, and the coxofemoral angle with the relationship between Q / J flexion in the sagittal plane. Methodology: cross-sectional study with 78 athletes (42 men and 32 women). Biomechanical analysis was done by FSDT. The strength of the posterolateral complex through the Hip Stability Isometric Test with the aid of the dynamometer. Ankle dorsiflexion through the Lunge Test. Internal hip rotation through the GoniometerPro®. Results: athletes who had a fall angle <= 7,5º had a low Q/J ratio. Associated with this variable, ankle dorsiflexion also shows influence on the Q/J ratio. Pelvic fall values > 11,5º associated with dorsiflexion <= 33,5º resulted in athletes with high ratio; in addition, pelvic fall values between 7,5º and 11,5º, along with dorsiflexion <=28,5 also resulted in athletes with high ratio. The other variables showed no significant relationship. Conclusion: Different biomechanical variables were analyzed, however it was seen that only two of them showed correlation with the hip / knee angle relationship.