A Portable Upper-Limb Exoskeleton With Pneumatic-Driven Variable-Stiffness Units for Long-Term Working in Fixed Overhead and Ahead Postures
Long-term working in fixed postures often leads to muscle fatigue and musculoskeletal disorders. Existing passive exoskeletons for overhead tasks introduce resistance during arm lowering, while active exoskeletons face limitations due to their weight and lack of comfort. To address these challenges,