Design and Simulation of a Robotic Knee Exoskeleton with a Variable Stiffness Actuator for Gait Rehabilitation*

Patients with knee impairments caused by neurological or orthopedic diseases such as a stroke, spinal cord injury, or physical injury are at a high risk of secondary complications, which include muscular dystrophy and hemiplegia. This seriously affect the quality of life of these patients. Therefore, it is necessary to assist these patients to regain the ability to perform activities of daily livi...