We discussed an example of poor box jump mechanics after ACLR. It is shown in many studies that poor jump mechanics is a risk factor for an injury. But it can be fixed through training.
The picture on the left is taken earlier. She was jumping with her knees almost touching. She also landed on the box with the same knee positions. The picture on the right was taken after about a month and a half after. She is still going through rehabilitation but her jump mechanics is a lot better. She also is not standing straight up like she was on the left picture. She still leans towards her non-surgical side when she jumps, which needs to be fixed.