Influence de la plasticité proprioceptive sur la biomécanique associée au risque de rupture du ligament croisé antérieur au handball

The objective was to evaluate the influence of proprioceptive integration capabilities on the biomechanics associated with the risk of anterior cruciate ligament (ACL) rupture. Using tendon vibration allowed the identification of two distinct postural proprioceptive strategies. Plastic individuals were able to reweight signals based on support stability, while rigid athletes maintained an ankle steered strategy regardless of the signal reliability rising from the ankle. The latter implies suboptimal postural performance associated with poorer proprioceptive reintegration abilities. During sidestep cutting maneuvers, rigid subjects exhibited low pre-activation of the semitendinosus, coupled with increased activity of the vastus lateralis during the stance phase and ankle kinematics reflecting higher risk for ACL injury. Lack of proprioceptive plasticity influences athletes’ motor behavior and leads to at-risk biomechanics for ACL injury.