The relationship between physical fitness and drop vertical jump biomechanics in male college basketball players

Background Studies have shown that vertical jump biomechanics or patterns may be related to physical fitness. This study investigated the relationship between physical fitness and drop vertical jump (DVJ) biomechanics in male college basketball players. Methods Health-related physical fitness was measured by 20s sit-up, core endurance and flexibility test; whilst athletic-related physical fitness by Y-balance test and dominant extremity single-leg hop distance test. Kinetics and kinematics during DVJ were evaluated by VICON. Results Five-level side bridge correlated negatively with angle displacement of hip adduction ( p = 0.014) and positively with moment of knee flexion ( p = 0.033); 8-level abdominal bridge correlated positively with moment of knee flexion ( p = 0.01); ankle dorsiflexion range of motion correlated negatively with mediolateral ground reaction force ( p = 0.025), angle displacement of knee flexion ( p = 0.004), moment of ankle plantarflexion ( p = 0.009), and positively with angle displacement of ankle plantarflexion ( p = 0.015); ankle plantarflexion ROM correlated negatively with angle of knee flexion ( p = 0.012); trunk flexion ROM correlated negatively with moment of ankle plantarflexion ( p = 0.014). Conclusion Health-related physical fitness could be the alternatives for DVJ biomechanics assessment.