Physical Therapist Assistants, or PTAs, are skilled health care providers who work under the supervision of a physical therapist. PTAs perform a variety of roles in the health care delivery system. They assist physical therapists in implementing treatment programs; train patients in exercises and activities of daily living; conduct treatments and report patients' responses to physical therapists. PTAs must complete a 2-year education program, usually offered through a community or junior college. Graduates receive an Associate's degree and must pass a state licensure exam.