The JAPET.W+ medical device is a new dynamic distraction support system. It could be considered as a new solution in the therapeutic arsenal for managing common low back pain. This study aims to assess the effectiveness of this device among the two targeted populations during daily use. Each patient will be asked to estimate the intensity of their low back pain several times during the clinical investigation. Our main hypothesis is a reduction in low back pain while wearing the device. The secondary hypothesis is a decrease in activity limitations, an increase in participation, an improvement in quality of life, and a reduction in healthcare product and medication consumption.

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).