Lie on your right side on a mat, propping your head up using your right hand and bending the right knee whilst extending the left leg. Turn the foot of the left leg so that your toes are pointed down towards the floor and heels towards the sky. This is your start position. Focusing the tension on your left glute and leading with the heel of your left leg, drive the leg up towards the sky, keeping it extended as you do so. Exhale as you do this. Squeeze your glute at the top and then lower with the control to the start position, inhaling as you do so. Repeat all the required reps (or time) on one leg before changing to the other.