Physical Therapist Assistants (PTAs) work as part of a team to provide physical therapy services under the direction and supervision of physical therapists. PTAs implement selected components of patient/client interventions (treatment), obtain data related to the interventions provided and make modifications in selected interventions, either to progress the patient/client as directed by the physical therapist or to ensure patient/client safety and comfort. PTAs assist physical therapists in the treatment of individuals of all ages, from newborns to the very oldest, who have medical problems or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. Physical therapists are responsible for the services provided by the PTA. Physical therapists (PTs) are healthcare professionals who examine each individual and develop a plan using treatment techniques to promote the ability to move, reduce pain, restore function and prevent disability. In addition, PTs work with individuals to prevent the loss of mobility before it occurs by developing fitness- and wellness-oriented programs for healthier and more active lifestyles. PTAs provide care for people in a variety of settings, including hospitals, private practices, outpatient clinics, home health agencies, schools, sports and fitness facilities, work settings and nursing homes. PTAs must graduate from a CAPTE-accredited PTA program and licensure or certification is required in most states in which a PTA works.