Why are robots used in neurorehabilitation?

• A. They can replace therapists entirely
• B. They provide passive entertainment during therapy
• C. They reduce therapy by replacing all therapists
• D. They allow for high-intensity training (more repetitions), task-oriented training, and cost-effectiveness by optimizing therapist time

Answer: (D)

The essential idea is that motor recovery after neurological injury thrives on high-dose, task-specific practice with clear feedback. Robot devices let therapists deliver many more repetitions of functional movements—reaching, grasping, walking— with precise, consistent assistance or resistance. This enables a high-intensity training approach that would be hard to achieve manually without fatiguing therapists, while still targeting meaningful tasks that translate to daily life. Robots can adjust the level of help as the patient improves, provide real-time feedback, and collect objective data on performance, which helps tailor therapy to progress. Importantly, they free therapists to focus on strategy, motivation, and task selection rather than performing repetitive guidance, making therapy more efficient and cost-effective.