Exercising regularly is very important for us. It promotes healing process and speeds up recovery from any injury. I had a bad knee pain and my physician recommended I follow a set of exercises and in a few weeks my knee pain disappeared. Exercises for physical therapy could be stretching, balancing, strengthening, endurance exercises and so on. You need to start on a slow pace and gradually increase the repetitions and intensity. Each set of exercises have variations. As your body gets used to a certain set of exercises you need to change it or challenge your body against it.