Inclussion criterias are; low back pain for at least 3 months, intensity of pain ranges from 3 to 6 according to VAS. Exclussion criterias are; undergoing surgical operation in the lumbar region or having a surgical indication, having an exercise therapy and / or physical therapy in the last 1 year, a history of trauma involving lumbar region and systemic and inflammatory disease targeting this region, participants using corticosteroids for a long time and being pregnant.Acording to our criterias 55 participants diagnosed with CNSLBP will randomised into three groups. Group 1 will receive Conventional Physiotherapy programme consisting of Hot pack, US and TENS applications. Group II aill receive Lumbar SNAGS consisting of Lumbar Extension SNAGS in prone, SNAGS in lion position and Lumbar flexion SNAGS in sitting, techniques. Group III will receive 9 sessions of SNAGs, and Group III will receive CPP plus SNAGs.Outcome measures are pain, ROM, spinal mobility, fear avoidance behaviour and function. Measurements will record before, after and 6 month after the end of the treatment. All treatment groups were treated with the same researcher. All assessments were made by another blind researcher three times at before, after and 6 month after treatment.
Fifty five participants diagnosed with CNSLBP, will randomized into three groups. Group I (18 subjects) will receive 15 sessions of Conventional Physiotherapy program (CPP) 5 times per week, Group II (19 subjects) will receive 9 sessions of SNAGs, and Group III will receive CPP plus SNAGs. Outcome measures are pain, ROM, spinal mobility, fear avoidance behaviour and function. Measurements will record before, after and 6 month after the end of the treatment.