Decathlon has developed the Lumbar belt Soft 300 and Mid 500 products which are medical devices designed to reduce pain and improve function during sport practice for athletes with a common subacute or chronic low back pain.

The objective of this multicentre study is to collect data on the related clinical complications and clinical outcomes of market-approved Decathlon Lumbar belt range of products to demonstrate safety and performance of these devices in a real-world setting.

Outcome data collected from this study will provide the basis for Post-Market Surveillance (PMS) reporting, Clinical Study Report (CSR), Clinical Evaluation Report (CER) on Decathlon lumbar belt Soft 300/ Mid 500 devices and support peer-reviewed publications on products performance and safety.

Inclusion Criteria:

• Subject is aged ≥18 years old
• Subject has a medically-confirmed common subacute or chronic low back pain
• Subject performs regular physical activity
• The current condition of his/her back allows the subject to pursue a usual physical activity
• Subject has been informed and is willing to sign an informed consent form
• Subject is willing to comply with protocol requirements and return to the study center for all clinical evaluations and required follow-up (12 weeks)
• Subject is affiliated to the French social security regime

Exclusion Criteria:

• Subject has undergone a surgical treatment for his/her back
• Subject presents associated neurologic signs (equina syndrome, radiculopathy, sciatica…)
• Subject presents signs of specific low back pain (i.e. low back pain is a symptom of an underlying condition): presence of red flags
• Subject has conditions that may interfere with his/her ability to understand protocol requirements, participate in scheduled visits, or provide his/her informed consent
• Subject has worn a support (lumbar or sacroiliac hip belt) during sports sessions in the last month
• Subject has any medical condition that could impact the study at investigator's discretion
• Subject has a known hypersensitivity or allergy to the components of the devices (elastodiene, elastane, polyamide, polyethersulfone [PES])
• Adult subject to a legal protection measure

Subject with medically-confirmed common subacute or chronic low back pain whose current condition of his/her back allows the subject to pursue a usual physical activity.