Thirty patients with chronic non-specific neck pain were randomized to receive either exercise training (n=10), exercise combined with cervical self-mobilization training (n=10), or exercise combined with cervicothoracic self-mobilization training (n=10). The primary outcome of interest was neck pain reduction. Secondary outcomes included improvements in cervical ROM, strength, and endurance of deep neck flexor muscles, neck disability, and quality of life. Outcomes were assessed before and after 6 weeks of intervention. Overall, the results revealed that all interventions improved neck pain, cervical ROM, and quality of life, but the combination of exercise and cervicothoracic self-mobilization showed the most significant improvements, particularly in lateral flexion ROM and pain reduction. This suggests that the addition of cervicothoracic self-mobilization to exercise is more effective in managing chronic non-specific neck pain.