Feasibility of using a novel hand-training support robot for patients with acute stroke and severe hand paralysis: A retrospective study

Introduction The newly developed robot hand training module is expected to assist with hand function training from the bedside. This retrospective study aimed to evaluate the feasibility and effectiveness of training using this novel hand training-support robot. Methods Twelve patients with severe hand paralysis during the acute phase of stroke were included in this study. Some device durability issues were encountered, and improvements were made to the robot at the therapists’ requests to make it easier to use. The primary outcome was the Brunström recovery stage of the hand. Results The pneumatic robot could provide auxiliary movements, such as flexion and extension of the fingers, and passive movements. No adverse events associated with using the robot in addition to conventional training for 20-40 minutes a day, 5 times a week were encountered. Compared with 12 patients who received conventional training alone, the robot-assisted group showed significantly greater improvement in hand BRS scores (median + 1 vs 0) over approximately 2 months. Conclusion The use of the robot proved safe, with high clinical practicality. We intend to conduct a prospective comparative study to verify the effectiveness of the robot.