1. Walking Aid – The walking aid is a training device for gait rehabilitation that guides walking based on gait theory and accelerates the recovery process. It assists the elderly and patients in walking, supports patients in resuming training, as well as in sitting and resting. 2. Biomimetic Design – The wearable device compensates for muscle weakness through a bodysynchronized rhythm, enabling efficient and harmonious movement support by leveraging natural gravity. 3. Passive Dynamic Walking – The bionic exoskeleton leg requires no batteries, motors, or other kinetic power sources, relying solely on the pendulum principle to efficiently support natural walking. 4. Adjustable Length – The lowerlimb walking aid can be adjusted in length with the press of a button, adapting to different body heights. This allows it to meet the demands of various scenarios, such as wheelchair transfers, standing training, and gait rehabilitation.