With the cable attached at the lower position, attach the cuff to your outer ankle.
Lie on your side with your affected leg on top.
Keep your top leg straight and in line with your body.
Move your outer leg outwards to about 45 degrees and then slowly, under control, return it back to the starting position.
Do not roll your body forwards or backwards.
Control the movement as you lower it back down to the starting position and repeat.
