Spine Rehabilitation Using Spine Flexion / Extension Full Active Range of Motion for Patients With Chronic Low Back Pain

Inclusion Criteria: * Medical prescription for chronic low back pain rehabilitation * Evolution of low back pain for at least 3 months * No treatment or rehabilitation for low back pain performed within 12 months before enrollment * Written informed consent given Exclusion Criteria: * Spinal fracture or previous spinal surgery * Cognitive impairments that prevent from understanding the rehabilitation exercises * Patient with insufficient understanding or expression in French * Non-mechanical pain : gradually worsening pain, present at rest and especially at night * Neurological symptom : deficit in the control of bladder and anal sphincters, motor weakness of lower limbs, Cauda equina syndrome * Pubis paresthesia (or perineum) * Severe trauma (such as fall from height, traffic accident) * Unexplained weight loss * History of cancer * Drug use or long-term use of corticosteroid * Spinal deformity * Altered general condition * Patient with signs of neurological impairment : positive Lasegue test (Straight Leg Raise Test) or positive Slump test, or DN4 questionnaire greater than or equal to 4 * Patient suffering from a central or peripheral neurological pathology * Patient taking a level II (weak opiates) or III (morphine and related substances) analgesic treatment * Patient under guardianship, curatorship or legal protection