Like the static back exercise, this one helps to relax the muscles which keep pelvis and back in correct alignment. If you have any musculo-skeletal complaint I recommend you do this exercise.

Lie with one leg comfortably on an ottoman or chair, the other extended on the floor. Have a smaller block in place to stop the foot of the lower leg from turning out. Lie in this position for 20 minutes or more.

You may notice the sides are different, which suggests that your pelvis is twisted. Gradually, over the days, the weeks and the months this exercise will help relax the muscles that are pulling your pelvis out of alignment; it will get you back into better alignment; pressure will come off your lumbar spine; pain will go away.