This exercise is intended to let the ankle move in a non-weight bearing environment.
To do this exercise you will need a mat. You will begin by lying on your back and lifting one leg into the air. Be sure that you can see your toes. Then flex and point your foot. When you flex your foot pull your toes towards your body and when you point your foot reach your toes towards the ceiling. Repeat 8-10 times.
What to watch for:
Be sure to have ease in your head, neck, and shoulders. Maintain a long axis in the spine.
Imagine how the foot can move around the heel. The heel is a very important landmark when thinking about alignment and connectivity.