Final answer:
A PTA is a trained professional who works under the supervision of a physical therapist to provide physical therapy services to patients. PTAs play a crucial role in rehabilitation and recovery.
Step-by-step explanation:
The American Physical Therapy Association (APTA) defines a Physical Therapist Assistant (PTA) as a trained professional who works under the supervision of a physical therapist. PTAs provide physical therapy services to patients, aiding in their rehabilitation and recovery from injuries or medical conditions.
A PTA assists physical therapists in implementing treatment plans and conducting therapeutic exercises. They may also perform various procedures such as applying modalities like heat or cold therapy, assisting patients with mobility devices, and documenting patients' progress.
For example, if a patient has a muscle or joint injury and is referred to a physical therapist, the PTA may assist in assessing the patient's range of motion, designing an appropriate exercise program, and monitoring the patient's progress throughout the therapy sessions.