Lay on the floor with a neutral pelvis, hands at your sides, and your feet together on the chair.
Extend the legs out on an exhale, rolling the chair away. If you don't have a rolling chair, rest your heels on a small towel (if you're on a smooth floor) or on two sliders or paper plates (if you're on carpet).
Pull in your abdominal muscles to roll the chair back in on your inhale, allowing your knees to twist toward the right side. Exhale to push the chair back out to the neutral spine and repeat, twisting your knees to the left.