Physical therapy is a healthcare profession dedicated to the evaluation, diagnosis, and treatment of movement disorders and physical impairments. Physical therapists use evidence-based techniques including therapeutic exercise, manual therapy, neuromuscular re-education, and modalities such as ultrasound and electrical stimulation to restore, maintain, and promote optimal physical function. The profession addresses conditions arising from injury, disease, aging, and congenital disorders, working across the lifespan from neonatal care to geriatric rehabilitation.
The field is grounded in the biomedical sciences of anatomy, physiology, kinesiology, and biomechanics, while also drawing on principles from psychology, neuroscience, and exercise science. Physical therapists conduct thorough examinations that include patient history, systems review, and specific tests and measures to develop individualized plans of care. Treatment goals range from reducing pain and inflammation to restoring range of motion, strength, balance, and functional independence. Specializations within the profession include orthopedic, neurological, cardiovascular and pulmonary, pediatric, geriatric, sports, and women's health physical therapy.
Modern physical therapy emphasizes patient-centered care, shared decision-making, and self-management strategies. The profession has evolved from a supportive rehabilitation role to one that includes direct access, meaning patients in many jurisdictions can see a physical therapist without a physician referral. Research in physical therapy increasingly focuses on outcomes measurement, implementation science, and the biopsychosocial model of pain, recognizing that psychosocial factors such as fear-avoidance beliefs and catastrophizing significantly influence recovery. Physical therapy plays a critical role in reducing healthcare costs by providing conservative management alternatives to surgery and long-term medication use.