Stand up straight with your feet shoulder width apart.
Have your knees softened,
Tilt your pelvis by tightening your stomach and buttock muscles, flattening your lower back and tucking your tail bone under.
Then stick your tail bone out, relaxing your abdominal muscles, arching your lower back.
Ensure your upper body and shoulders remain upright and relaxed throughout.
Repeat the movement, ensuring you breath steadily throughout.
