If you haven't tried skiing on your arms in the Rocky Mountains, perhaps this is a good place to start. By applying pressure through the arms, this exercise promotes shoulder stabilization (rotator cuff) through proprioceptive activity.
Advanced lower core exercise designed to strengthen and stabilize the hip, knee, and ankle while improve balance. You may need something to hold on to while performing this exercise.
A traditional lunge is performed with the addition of visual and auditory feedback to evaluate weight distribution of rear and front feet. You may modify this during the calibration phase to make it easier or harder.