Chronic Neck Pain: Mobility, Sleep, Function

The Neck Disability Index (NDI) is the most widely used self-report tool to assess neck pain status, and provides information not only about pain experiences but also about a person\'s functional status. The NDI consists of 10 questions related to pain, functional activities, self-care, and quality of life that are measured on a 6-point scale (0, no disability; 5, full disability). The numeric score for each item is summed for a score ranging from 0 to 50; 0-4 points are defined as no disability, 5-14 points as mild disability, 15-24 points as moderate disability, 25-34 points as severe disability and above 35 points as complete disability.

A 10 cm VAS numbered from 0 to 10 was used for the assessment. 0 indicates no pain and 10 indicates unbearable pain. Participants were asked to mark a point between 0-10 according to their pain status

Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI), a 19-item self-report questionnaire

Active Cervical Range Of Motion was measured with a universal goniometer in all three planes of motion in the cervical region: lateral flexion (frontal plane), axial rotation to both right and left sides (horizontal plane), and flexion-extension (sagittal plane).