Lie on your back, or sit with your leg out straight. Rest your heel on a rolled towel or a low support, so your knee hangs free in the air. Let the knee relax and straighten by itself. Do not push it down and do not add weight. Stay for the time shown and breathe normally.
If an exercise hurts more than you expect, stop and contact your clinician.
Written and reviewed by Konstantinos Danalis, licensed physiotherapist and manual therapist.
