Physical therapy should usually begin within the first few months of life once the diagnosis of cerebral palsy is suspected. A physical therapist improves the development of the large muscles of the body, such as those in the legs, arms and abdomen. They use specific sets of exercises to help the child learn to stand, walk, use a wheelchair. Neurodevelopmental therapy is fast becoming popular and forms the mainstay of therapy. It is used to decrease spasticity, strengthen underlying muscles, and teach proper or functional motor patterns. These exercises help in preventing musculoskeletal problems. Also, physical therapy will help avoid contractures, in which muscles become fixed in a rigid, abnormal position.