When you have been ill, inactive for a long time, or injured, you may have a difficult time regaining your strength. Because your body is suffering from disuse, joints may feel stiffened and muscles weakened. Physical Therapists can provide a series of rehabilitation exercises through a progressive and comprehensive program that will gradually put muscles and joints back into use and strengthen them. These exercises have been designed to meet the needs of patients under many conditions and thus will need to be modified for each individual. Rehabilitation exercises can help post-operative patients heal properly, corrects deformities, and aid in strengthening the body after a sports injury or surgery.