An Unpowered Hip Exoskeleton Towards Walking Performance Enhancement for Stroke Survivors

Stroke is one of the leading causes of long-term disability, often resulting in impaired mobility and decreased life quality. This paper presents a novel passive hip exoskeleton system addressing two critical challenges in post-stroke rehabilitation: multi-planar gait assistance and real-time asymmetry quantification. The design features a geometrically optimized dual-plane assistance mechanism generating simultaneous flexion torque and lateral stabilization through spatial spring coupling. Integrated adaptive frequency oscillators enable sub-100ms gait asymmetry detection, providing instant feedback for users.