"Evaluation of the Effectiveness of the MDT Method (Mechanical Diagnosis and Therapy) in the Management of Low Back Pain in the Subacute Phase"

Inclusion Criteria: * Consultant patients at the Picasso physiotherapy practice (5 rue Nina Simone - 44 000 NANTES) * Aged 18 to 55 years old * Suffering from common-looking low back pain. Low back pain is defined as pain or localized discomfort under the 12th dorsal vertebrae and above the inner fold buttock, with possible irradiation to the lower limb but not exceeding the knee. * Evolving for 4 to 12 weeks (subacute period). * Period preceded by a period of 30 days without low back pain (in order to avoid recurrent low back pain, rather similar to the chronic phase). Exclusion Criteria: * Signs of specific low back pain (confirmed or highly suspected diagnosis): fracture, infection, osteoporosis, inflammatory disease, tumor * Irradiation below the knee * Patient knowing she is pregnant * Protected adults * Patient with proven cognitive impairment * Patient with a decompensated psychiatric pathology * Incapacity to consent * Refusal to participate in the study