Study participants for Stage II. Thirty teenagers with CP at each center (total number of 120 at the four centers) will be matched according to age and GMFCS level (II and III) and randomly assign to one of three treatment programs. Subjects will be recruited from those in the first stage of the project. All partners of this project will obtain approval from their local committees. Each subject (or parents/guardians for the participation of a minor subject) will sign an informed voluntary consent form, consistent with the Helsinki Declaration, after reading a detailed explanation letter and having an oral Q/A session with the investigator.