Inclusion Criteria:  Non-specific low back pain for at least 3 months. Intensity of pain equal to or greater than 3 cm.  Exclusion Criteria:  Specific low back pain. Neurological involvement (radiculopathy, myelopathy). Previous spinal surgery. Any impediment to performing the exercises. Having had recent surgeries. Being on treatment for low back pain Not having cognitive ability to perform the exercises or be submitted to the proposed assessments Missing appointments three times in a row.