Physical Therapist Assistants (PTAs) provide physical therapy services under the direction and supervision of a physical therapist. PTAs help individuals of all ages who are ill, injured or have a health condition that limits their ability to perform daily activities needed for life. PTAs work in a variety of settings including hospitals, outpatient centers, home health, schools, work settings, and the sports and fitness areas. Care provided by a PTA may include teaching patients/clients exercises for mobility, strength and coordination, training for activities such as walking with crutches, canes or walkers, and using physical agents such as ultrasound and electrical stimulation. PTAs must complete a two-year associate's degree and are licensed, certified, or registered in most states.