Purposes of the study

To investigate the effect of adding Cervical High-Intensity Resistive Exercises to conventional physical therapy in patients with Chronic Non-Specific Neck Pain

Patients will be randomized into either Cervical High-Intensity Resistive Exercises group or Conventional physical therapy group. Patients will receive the intervention for six weeks. Outcomes will be assessed at baseline and post-intervention.

Inclusion Criteria:

1. Thirty-four patients diagnosed CNSNP.
2. Age of the patients between 20-40 years.
3. Non-specific neck pain started more than 3 months.
4. Reduce ventilatory function; FVC >= 70% from predicted.
5. Waist to height ratio (WtHR)> 60 %.
6. Positive craniocervical flexion test.
7. Positive neck flexor endurance test.
8. Pain at neck after prolonged static weight bearing positions.
9. Pain with palpation of the neck paraspinal or suboccipital or trapezius muscles.

Exclusion Criteria:

1. History of whiplash injury.
2. Clinical sign of cervical radiculopathy.
3. Clinical signs of cervical myelopathy.
4. Rheumatoid Arthritis or any other autoimmune diseases.
5. Any respiratory disorders.
6. Tumors.
7. vertebrobasilar insufficiency VBI.