Stand up straight balancing on your affected leg.
Hold a weight in your opposite hand.
Lift the other leg and hold it straight behind you.
Bend forwards at the hip so that your body moves towards the foot on the floor.
Your elevated leg should move backwards at the same rate.
Make sure you move through the hip and that you keep your spine in neutral.
You may feel the back of your legs working particularly on the way down.
Move at a steady rate before you slowly return to the standing position again.