background
In order to measure the impact of the exoskeleton on lumbar pressure, intra-disc pressure measurements were collected on an inert subject wearing the exoskeleton.
Method
A pressure sensor has been placed at the level of the lumbar intervertebral discs, allowing continuous measurement of intra-disc pressure. The recording starts with exoskeleton off. After a few seconds, the exoskeleton is switched on, then switched off again after 2 minutes of acquisition.
Results
Numerical and cadaveric studies have demonstrated a reduction in intradiscal pressures thanks to the application of a traction force with the exoskeleton.
We can conclude from this study that The port of The Japet.W exoskeleton reduces intra-disc pressure in the lumbar region by up to 40% compared to its initial pressure.

Fahed Zairi1 , Melissa Moulart2 , Christian Fontaine3 , Regis Logier4 , Vincent Tiffreau5 , Fahmi Zairi6
1 Department of Neurosurgery, Le Bois Private Hospital, Ramsay General of Health, Lille France 2 Japet Medical Devices, Lille France
3 Department of Anatomy, Lille University Hospital, Lille France
4 CIC-IT, Lille University Hospital, Lille France
5 Rehabilitation Unit, Lille University Hospital, Lille, France;
6 Lille University, Civil Engineering and Geo-Environmental Laboratory (EA 4515 LGCge), 59000 Lille, France