Lie on your back with your knees bent and legs hips width apart.
Tie a resistance band around your affected leg and attach it to a secure object.
Ensure there is some good tension on the band.
Tighten your buttock muscles and lift your hips up into the bridge position.
Ensure you keep a hips distance between your knees, resisting the pull on the band to take the knee on your affected leg outwards.
Continue to maintain this alignment with your legs as you lower your hips back down to the floor.