Here is a wearable robot that you can wear to reduce your walking effort by 23%. The GEMS-H weighs 2.1kg and can operate for 2 hours. It has assist/exercise/sit-to-stand modes. GEMS-K supports 35kg of force while GEMS-A can offer push off assist for forward movement.
GEMS-K was designed to reduce impact on knee joints. It provides assistance to osteoarthritis patients as they perform their daily tasks. GEMS-H simply enhances gait efficiency and reduces energy consumption.