Inclusion Criteria:  Patients age between 18 to 45 years. Moderate pain at rest (between 30 and 60 in NPRS). Patients with trigger points in the lumbar multifidus muscle. Patients have the ability to speak and read Persian.  Exclusion Criteria:  Currently taking anticoagulant medications Specific low back pain (Neurogenic low back pain, Spinal stenosis, cauda equina syndrome, spondylolisthesis, and Presence of any signs or symptoms of non-musculoskeletal pathology e.g. cancer, infection and fracture in low back and lower extremities based on paraclinical findings) Prior surgery to the lumbosacral spine Inability to obtain prone lying Severe malalignments in the cervical, thoracic, lumbar or pelvic region and the lower limbs History of uncorrected vision impairment, vestibular, hearing or cognitive impairments Leg length discrepancy which disturbs balance Systemic diseases, such as diabetes, fibromyalgia, rheumatoid arthritis, degenerative diseases and other rheumatoid diseases Needle phobia Sacroiliac pain as identified with six clinical tests: compression, distraction, sacral thrust, thigh thrust, Gaenslen's and FABER's