Lie on your back with your knees bent and together, and your arms out to the sides. Slowly let both knees fall a little way to one side. Bring them back to the middle, then let them fall to the other side. Move only as far as is comfortable. Each side counts as one.
If an exercise hurts more than you expect, stop and contact your clinician.
Written and reviewed by Konstantinos Danalis, licensed physiotherapist and manual therapist.