Intelligent rehabilitation is the application of technology-driven methods, transforming clinical settings by automating personalized routine processes. Its components include artificial intelligence, robotics, wearable devices, and virtual reality. Sensor integration, digital twins, telemedicine, and wearable devices improve diagnostic accuracy and enable more personalized rehabilitation plans. By leveraging real-time data, these technologies create highly adaptable and personalized treatment plans that adjust as therapy progresses. Intelligent rehabilitation technologies have revolutionized various clinical domains, particularly neurological rehabilitation, musculoskeletal rehabilitation, pediatric rehabilitation, and cardiopulmonary rehabilitation. Implementing smart rehabilitation technologies and developing the healthcare metaverse promise significant advancements in patient care and rehabilitation outcomes. However, several challenges must be addressed to realize the potential of these innovations fully. As innovations in artificial intelligence, virtual environments, and telehealth continue to advance, we can anticipate significant changes in how rehabilitation services are delivered and experienced.