What are some examples of robotic exoskeletons, and how do they assist individuals with mobility impairments or physical disabilities in walking, standing, and performing daily activities by providing powered assistance and support to the lower limbs?

Examples include EksoGT, ReWalk, and HAL (Hybrid Assistive Limb) robotic exoskeletons designed to enhance mobility and independence for users with spinal cord injuries, stroke, or neurological disorders. These exoskeletons use powered actuators and sensors to detect user movements and provide assistive forces to the legs, enabling users to walk, climb stairs, and navigate uneven terrain with improved stability and endurance.