Fourier M1-A is a rehab robot designed to provide a new rehabilitation experience for ankle joint rehabilitation. Assist – as – needed The integrated force sensors can sense the initiated movement form users and provide appropriate assistance for goal-directed tasks. Data – based Rehab Process Real-time rehab training performance is being recorded during the therapy session. The quantitative assessment and training reports make the rehabilitation progress validated and measurable. Gamification Therapy User is motivated to do intensive and repetitive training by various immersive interactive games. It particularly boosts the interest and engagement of users throughout the rehabilitation proves. Clinical Applications M1-A simulates the natural movement of ankle joint, such as dorsiflexion and plantarflexion. It applies to users with ankle dysfunction caused by the neurological, musculoskeletal injury.