Drop Jump Test

The most sensitive test for an ACL injury is the Lachman test, which assesses the integrity of the ACL by checking the amount of anterior translation of the tibia in relation to the femur and the quality of vertical force of the endpoint felt during the test.

You can start jumping after an ACL tear, typically around 9 to 12 months post-surgery, provided that you have undergone progressive rehabilitation and have clearance from a healthcare professional.

The Drop Test in sports measures an athlete's dynamic knee stability and neuromuscular control during landing, particularly the stretch-shortening cycle.