Inclusion Criteria:  Inclusion Criteria in the Study;  Between the ages of 18-65, Have neck pain that lasts longer than 3 months, Volunteer patients diagnosed with chronic neck pain by a specialist,  Inclusion criteria in the control group;  Has not experienced neck pain for the last 1 year, Asymptomatic individuals between the ages of 18-65,  Exclusion Criteria:  The criteria for exclusion from the study;  Having had cervical spine and shoulder surgery, Neck pain caused by different pathologies (tumor, rheumatoid arthritis, ankylosing spondylitis, fracture, dislocation), With cord compression and findings (L'hermitte sign is positive), Having severe radiculopathy (Upper limb tension tests are positive), Have osteoporosis, It has been identified as having shoulder pain and any shoulder pathology (Rotator Cuff tear, shoulder impingement syndrome, etc.).  Exclusion criteria for the control group; 1. Those who have experienced neck pain in the last 1 year, 2. Different pathologies (inflammatory diseases, neoplasia, vertebral dislocation fracture history) 3. Previous cervical spine and shoulder surgery, 4. Those with advanced osteoporosis causing compression fracture, 5. Those with shoulder pathology,  -