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- Talk
- 14/07/2021
- UK
Graft-Specific Countermovement Jump Kinetic Asymmetries following Anterior Cruciate Ligament Reconstruction in Professional Footballers
Description
In this presentation by Daniel Cohen, titled "Graph-Specific Countermovement Jump Kinetic Asymmetries Following ACL Reconstruction in Professional Footballers," he discusses the findings from a study evaluating the kinetic differences between two types of grafts used in ACL surgeries: bone-patellar-bone (BTB) and hamstring tendon grafts. The study, conducted on 39 professional football players who underwent ACL surgery, aimed to investigate the presence of kinetic asymmetries in countermovement jumps four to six months post-surgery.
Cohen emphasizes the increasing choice of BTB grafts in professional football due to their perceived strength and lower re-injury rates, although this type has also been associated with a higher risk of contralateral ACL ruptures. The analysis found significant differences in eccentric and concentric force development between the two graft types, with BTB showing larger asymmetries. However, other measures of jump performance did not significantly differ between the graft types.
The key findings suggest that specific performance deficits exist in players who have undergone BTB reconstruction, particularly concerning force production and reduction during jumps—a factor that could elevate the risk of further injuries, especially on the contralateral side. Cohen concludes with a call for increased monitoring and development of these kinetic characteristics during rehabilitation to potentially mitigate such risks.