Standing Wall Twist
Start by facing the chair and lifting your left leg on to the chair with your arms straight out at shoulder height. Rotate your upper body towards the wall and place both hands on the wall. Hold this position for 10 seconds. Turn the chair in the opposite direction and perform this same exercise with your right leg on the chair and upper body rotating to the right.
You should avoid any exercise which causes you to have increasing pain or other symptoms. Consult with a medical professional before beginning any exercise program.