Comparison of the Effectiveness of 2 Manual Therapies on Functional Outcome in Sub-acute and Chronic Non-specific Low Back Pain

Inclusion Criteria: * Patient consulting for subacute and chronic non-specific low * Male or female aged from 18 to 65 years (included) * Patient can speak and understand French * Patient giving his informed consent to participate in the study * Patient affiliated to or beneficiary of social insurance Exclusion Criteria: * Specific low-back pain caused by inflammatory, tumoral, infectious disease or a back traumatism in the 3 past months * History of back surgery and/or vertebral fracture in the previous 6 months * Presence of a motor impairment related to the reason for consultation * The patient is a student or a practitioner in manipulative therapies * Pregnancy * Inability to understand the process of the study * The patient is already included in another clinical study