Effects Of High-top And Low-top Basketball Shoes On Lower Limbs' Biomechanics In Different Jumping

Objective:To investigate amount of dorsi-flexion, joint moment, joint stiffness of ankle, joint power of ankle and knee, jump performance of different jump strategies in high-top and low-top basketball shoes.Methods:Twelve male subjects participated in this study voluntarily. Subjects were instructed to perform two different jump strategies. All subjects were requested take off in a force plate, use Vicon motion-capture system and force plate to capture kinematics and kinetics data. Statistical testing was performed using SPSS 17.0, processed paired sample t-test. All significance levels were set at p=0.05.Results:1) High-top basketball shoe could reduce ankle range of motion (ROM) in a static ankle ROM test compared with low-top shoe.(p<0.01)2) In drop jump and lay up, high-top shoe trend to limit ankle dorsi-flexion than low-top shoe, but there was no significant difference.3) In drop jump, high-top shoe increased ankle stiffness than low-top shoe. (p<0.05)4) In lay up, high-top shoe decreased ankle dorsi-flexion moment and ankle joint power than low-top shoe. (p<0.05)Conclusion:1) High-top shoe could limit ankle dorsi-flexion than low-top shoe.2) High-top shoe could increased ankle stiffness compared with low-top shoe in drop jump.3) It appeared that high-top shoe could decreased the maximum ankle power (in take off period) that might influence jump performance.