Exploring the clinical efficacy of neck movement training for patients with chronic nonspecific cervicalgia based on AI-based motion feedback: a randomized controlled study

INTERVENTION: Trial group:Under APP support, receive cervical exercise training based on AI motion feedback.;Control group:Receive the same cervical exercise training guided by traditional video instructions.; CONDITION: Chronic nonspecific neck pain PRIMARY OUTCOME: Visual Analog Scale; SECONDARY OUTCOME: EuroQol 5‐Dimensional Questionnaire;Surface electromyography;Pain Catastrophizing Scale;Tampa Scale for Kinesiophobia;Craniocervical Flexion Test;Depression Anxiety Stress Scales – 21 items;Neck Disability Index;Pain Self‐Efficacy Questionnaire;Functional near‐infrared spectroscopy;Exercise Adherence Rating Scale;Cervical Forward Angle, CFA;Cervical Range of Motion; INCLUSION CRITERIA: 1.Age between 18 and 65 years old; 2.Continuous or frequent neck pain that has lasted for at least 6 months and currently exists; 3.VAS pain score >= 3cm; 4.Capable of using smartphones (iPhone or Android) or tablets and independently completing exercise plans; 5.Voluntarily participate in the experiment and sign an informed consent form; 6.Can read and understand sports and tests.