Stand on one leg, keeping the other leg extended in front of you. Instead of lowering on a flat foot like in a standard pistol squat, stay on the ball of your foot — heel slightly elevated. Lower down into a deep squat position with control, keeping your chest up and back straight. Once at the bottom, push through the toes and midfoot to return to standing. The heel doesn’t touch the ground throughout the movement, which increases the difficulty and balance challenge.