Efficacy of TECAR Therapy on Patient With Mechanical Neck Pain

The goal of this clinical trial is to evaluate the effectiveness of TECAR therapy in improving pain intensity, cervical range of motion, and functional disability in individuals with mechanical neck pain. It will also assess whether TECAR therapy provides additional clinical benefits compared with conventional physical therapy treatment. The main questions it aims to answer are: * Does TECAR therapy reduce pain intensity in patients with mechanical neck pain? * Does TECAR therapy improve cervical range of motion (CROM)? * Does TECAR therapy reduce functional disability as measured by the Neck Disability Index (NDI)? Researchers will compare participants receiving TECAR therapy combined with conventional physical therapy to participants receiving conventional physical therapy alone to determine the effectiveness of TECAR therapy in managing mechanical neck pain. Participants will: * At