Some more rehabilitative and specific endurance work today. It is important to include things that will enhance your stability in other movements that are primary in nature. A stable core and stable hips for instance will improve the performance of the hamstrings and quads in the squat. This is because they are working from a firm foundation instead of balancing on a teeter totter. Something as simple as having better balance on one leg vs the other may be and indicator of needing to improve that quality a little.