Rehabilitation engineering is a specialized interdisciplinary field that applies engineering principles and methods to address the challenges and needs of individuals with disabilities. It investigates the design, development, testing, and application of technological solutions, including devices, systems, and environmental modifications, with the primary objective of restoring or enhancing functional capabilities, promoting independence, and improving the overall quality of life for people with physical, sensory, cognitive, or developmental impairments. Key characteristics include a strong emphasis on user-centered design, collaboration across engineering and clinical disciplines, and the integration of evidence-based practice.