HAPO is designed to reduce lumbar stress and preserves the intervertebral discs. It works by partially redirecting the forces from the upper trunk (chest support) to the thighs with the help of springs. The belt allows support without the restraint of the lumbar vertebrae.



The HAPO is a passive, spring-actuated hip exoskeleton for back support. It is designed to reduce muscular-skeletal disorders of the back of lumbar such as low back pain and herniated discs while working in the following range of motion:

  • “In a static standing position, it allows physical assistance, as soon as the back forms an angle greater than 5°.”
  • “In dynamic flexion, it allows, from the crouching position hands on the ground to the position arms at height (at hip level), to assist the lower back.”

The elastic elements of the HAPO are made of composite fibers that can provide up to 14kg (30lb) of support while the total weight of the exoskeleton comes to about 1.2kg (2lbs). The HAPO is highly adjustable allowing the user to change the distance and position of the spring element relative to their body using straps.


ErgoSanté, 28 ZA Labahou, 30140 Anduze, France, website

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