A bio-mechanical study on ankle movements of basketball players combined with DFIS
Abstract
To reduce the frequency of ankle injuries in basketball players, many studies have been conducted on the biomechanics of ankle movements in basketball players. However, due to the unclear recognition of bone images, there are inaccuracies in bio-mechanical analysis. To address the aforementioned issues, this study combines a dual plane orthogonal fluorescence imaging system with magnetic resonance imaging technology to propose a new image modeling method. Comparing this method with other methods, the results show that this method has the highest data collection integrity, and the highest image clarity reaches 98.7%. The root mean square error of pixel differences in the image is the lowest, only 0.96%. By using this method to analyze the biomechanics of basketball players’ lateral cutting movements, it is found that the strain and strain rate of the ankle anterior cruciate ligament decreases to 13.5% and 296%, respectively, when the athlete wears high top shoes. In addition, the basketball player’s on-stage speed during lateral cutting movements is 2.23 m/s, which is higher than other states. Moreover, various reaction forces during lateral cutting movements first increase and then decrease with the movement cycle. The experimental results indicate that the proposed image modeling method can increase image clarity and improve the accuracy of bio-mechanical analysis. There is a certain correlation between the bio-mechanical changes of basketball players and the height of their shoe uppers.
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