This is an intervention study including a baseline data collection, 6 weeks of a training intervention with robotic-assisted manual training, a post-intervention data collection, and a 4 weeks post-intervention follow-up data collection. The study will be conducted in the Motion Analysis Laboratory at Spaulding Rehabilitation Hospital, Boston, MA.This study aims to assess the effectiveness of a robot-assisted training on hand function and quality of life in children with cerebral palsy. Additionally, the investigators will study the relationship between muscle synergies and the outcomes of robot-assisted training.