Anterior Cruciate Ligament Reconstruction (ACLR) patients with >17 cm (±4 cm) SL CMJ performance, isokinetic knee-extension peak torque of 260% body mass and with >90%  limb symmetry measures in both jump and strength outcomes recover entirely as per a recent cross-sectional study. This study was conducted to obtain significant evidence with regards to patients rehabilitation after ACLR. The isokinetic dynamometry and counter-movement jump measurement were done to (a) to identify measures that can be best distinguishable between control and ACLR participants (b) to get normative values for recognized measures among young adult male multidirectional field-sport athletes.

One hundred and eight young male multidirectional field-sport athletes with approximately six months prior unilateral patellar-tendon graft ACLR and forty-four males with no previous knee injury were taken for the analysis. The intervention involved was SL CMJ (Single-legged countermovement jump). The groups were compared for flexion torque, SL CMJ and mean peak concentric knee-extension by using isokinetic dynamometry (ISO). The best predictors of ACLR or control group were identified by using stepwise logistic regression. The predictors involved were SL CMJ height, joint power contribution,  ISO peak torque, limb symmetry index, limb symmetry index variables and peak power.

A significant difference between the groups was seen with regards to SL CMJ performance (d > 0.4),  isokinetic knee-extension peak torque (d = -1.33) and limb symmetry measures in both jump and ISO outcomes  (d > 1.1). The group membership of  SL CMJ and ISO measures combination found with an accuracy of 89%. By gaining resulted values, ACLR patients can recover completely.