Physical therapy helps people develop, maintain, and restore maximum movement and functional ability throughout their lives. It addresses issues caused by aging, injury, or disease, focusing on full and functional movement as a key to health. Physical therapy involves promoting, preventing, treating, and rehabilitating movement potential. It includes interactions between patients, their environment, families, and caregivers to assess movement potential and set goals. Physical therapists use their unique knowledge and skills to diagnose and create intervention strategies, whether for health promotion, prevention, treatment, or rehabilitation.