Start: Shoulders and head resting on a ball, with feet flat on the floor hip width apart. Knees are directly above feet. Bend your hips a little and gently turn your pelvis towards you to pause in a position where the hips are straight but the back is relaxed.
Movement: Place your hands on the front of your hips. Keeping the heel on the floor, lift the front of one foot. Peel the other heel off the floor. Smoothly alternate the ankle bending motion.