Sit on a low chair so your feet can touch the floor.
Have your unaffected leg flat on the floor and cross your affected foot over the other leg so it is resting on your thigh.
Tie the band in a long loop with one end under the foot on the floor, and the end other across the inside of the affected foot.
Turn your affected foot inwards, lifting it up against the resistance of the band.
Slowly return to the start position and repeat as directed.