Stand up straight facing a wall. Place a sock or a slider under your unaffected foot.
Place your weight on the leg you would like to exercise with the knee slightly bent.
With your weight in the heel of your stance leg, slide your other leg directly behind you, keeping your weight on the ball of this foot.
Start with a small movement, using your arms and both legs to return to the starting position.
Increase the distance you move your back leg, ensuring you stop at the point you start to feel pain.
