ISO Leg Extension.

One leg does not wait for the other.

After a knee injury the problem is rarely that you cannot tolerate training, it is that the healthy leg drags the injured one along, and nobody knows how much each side is really lifting. Here each thigh has its own lever and its own plate load, so you can dose precisely on the side that is behind. The back support and foot roller are set so your knee meets the machine's axis, so the load lands in the muscle and not in the joint. Height 1075 mm, dead weight 105 kg, and the plates are Olympic (Ø50 mm). The strong leg does not help the weak one here.