Evaluation of the Japet.W+ Medical Device for Low Back Pain Management

Inclusion Criteria: * Non-specific chronic low back pain with active discopathy OR Non-specific chronic low back pain without active discopathy, * 18 years ≤ Age \< 80 years, * Average pain intensity (VAS) over the last week ≥ 40/100, * Patient affiliated to the health social security system, * Patient able to understand the information relating to the study and to sign the informed consent form. Exclusion Criteria: * Specific low back pain (infectious, inflammatory, tumorous, or traumatic in origin). * Motor neurological deficits (peripheral or central). * Extrapyramidal syndrome. * Treatment with implanted neurostimulation. * Severe heart or circulatory disease or respiratory problems. * Arthrodesis or disc replacement. * Surgery for herniated disc (\<3 months). * Spinal fracture or floating ribs (\<3 months). * Skin lesions on the trunk, history of contusions or skin lesions following traction of the trunk. * Pregnancy. * Patients who cannot tolerate the JAPET.W+ device during an initial trial. * Patients under guardianship, curatorship, or legal protection. * Participation in another clinical trial. * Patients who have worn a device designed to reduce lower back pain regularly during the 2 weeks prior to inclusion (lumbar belt, corset, exoskeleton).