Change in hamstring parametres After acl reconstruction using Hamstring graft- prospective study

Abstract

INTRODUCTION After ACL reconstruction (ACLr), muscle weakness is often observed, with lower strength in the extensor muscles when BPTB is used and in flexor muscles when HT is the choice. Torque measurement through isokinetic testing is commonly employed to evaluate knee muscle performance following ACL reconstruction (ACLR). Researchers typically assess patients between five and six months post-reconstruction. During this period, a deficit in extensor torque in the injured leg may exceed 10% and persist for up to two years post-ACLR. Various measurements of muscle performance play a crucial role in facilitating the return to sports and physical activities after ACLR. Peak torque, the most prevalent strength measure obtained from an isokinetic dynamometer, is often represented as a percentage normalized to body mass. It serves as a reliable indicator of joint function and relative muscle strength compared to peers. Additionally, the angle of peak torque, depicting the torque as a function of knee joint angle during maximal muscle activation, can be beneficial for designing training or rehabilitative programs.