Kinesiology Taping Versus Self-Mobilization for Neck Pain Related to Prolonged Electronic Device Use

The goal of this clinical trial is to learn whether kinesiology taping or self-mobilization better reduces neck pain in adults who use electronic devices for long periods each day. The main questions it aims to answer are: * Does kinesiology taping or self-mobilization lead to greater reduction in neck pain after 4 weeks? * Do the two treatments differ in their effects on neck-related disability, neck position sense, breathing muscle strength, and upper trapezius muscle activity? Researchers will compare kinesiology taping with self-sustained natural apophyseal glide (self-SNAG) mobilization to see which approach is more effective. Participants will: * Be randomly assigned to one of the two treatment groups * Receive kinesiology tape applied to the back of the neck every 4 days for 4 weeks, or learn and perform a towel-assisted neck self-mobilization exercise for 4 weeks * Receive education on posture and self-management * Complete assessments of pain, neck disability, neck position sense, breathing muscle strength, and neck-shoulder muscle activity at the start of the study, after 4 weeks, and 1 month later

Inclusion Criteria: * Age 18 years or older * Neck pain with an intensity greater than 3 on a 10-point Visual Analog Scale * Use of electronic devices for at least 4 hours per day during the preceding year * Willingness to participate and provision of written informed consent Exclusion Criteria: * Cervical or shoulder surgery within the past 6 months * Previously diagnosed cervical pathology, including whiplash-associated disorder, cervical spondylolisthesis, disc herniation, or rheumatoid arthritis * Current use of analgesics, opioids, or corticosteroids * Skin allergy, open wounds, or skin lesions in the cervical region that preclude kinesiology tape application