Lie on your left side, with your left elbow bent, cradling your head in your hand, and keeping your legs straight. Brace yourself with your right hand, palm down on the floor or mat.

Raise your right leg as high as you can (this should take approximately 1 second) without moving any other part of your body, leaving your left leg firmly placed on the floor or mat.

Pause for 2-3 seconds, lower your leg back down (this should take approximately 3 seconds), and return to starting position.
Complete 3 sets of 10-15 reps on each side.