Objective: The objective of the study was to determine the efficacy endurance exercise in chronic mechanical neck pain patients. Background: Neck pain is of the 20 most burdensome chronic musculoskeletal disorder affecting 10- 20% of population worldwide. In a relatively recent report on the global burden of disease, where 291 conditions were studied, neck pain was ranked 21st in terms of overall burden and fourth when measured by years lived with disability. Patients with chronic mechanical neck pain showed larger sway areas in standing posture and reduced ability to successfully execute more challenging balance and proprioception tasks. Methodology: This was an experimental study design with Pre-Post type conducted in the outpatient department of Physiotherapy at ACS Medical College and Hospital. 120 samples were selected from 150 volunteers based on the inclusion criteria Pre and posttest measurement will be taken and compared by using outcome measures like VAS, Neck Disability Index questionnaire and Jull’s technique. Results: On comparing the mean value of group A and group B, shows significant difference between group A and group B. Group A seems to be more effective than Group B.

Keywords: Chronic neck pain; Endurance; Disability; VAS; NDI.