Begin by balancing on one leg, with your non working leg behind you and bent at the knee. Spine Neutral.
Squat down, hinging at the hips and bending the knee, keeping a neutral spine. You can extend your arms in front of you to counterbalance. Keep tension on the front leg, and stop before the back knee touches the floor.
Drive back up, pushing your foot through the floor, engaging the glutes.
Drive your knee through, fully extend the hips and squeeze at the top.
Repeat for Repetitions. Switch Sides.