Patients with non-specific neck pain who volunteered to participate in the study and who met the inclusion criteria of the study will be included in the study after signing the voluntary consent form. First of all, the demographic and clinical characteristics of the patients will be questioned with the evaluation form. The personal information of the patients (gender, height, weight, smoking, etc.) and clinical status (pain type, pain intensity, muscle endurance measurements) will be recorded by the physiotherapist in the evaluation form. In addition to the evaluation form, the Northwick Park Neck Pain Questionnaire will evaluate the patients' neck disability, while the Keele Participation Evaluation will evaluate their level of participation in life.
Non-specific neck pain (NSBA), which is one of the most common causes of neck pain in the literature, occurs as a result of a postural or mechanical cause without a specific pathology or injury to the musculoskeletal system. NSBA causes an increase in superficial cervical muscle activity, and a decrease in deep cervical muscle activity, which contains a large amount of muscle spindles. Patients with chronic neck pain face functional limitations in many ways. Evaluation of disability as a result of loss of functions related to neck pain is necessary to cope with neck pain. In the ICF activity and participation section due to neck pain, it is stated that the daily life activities of the person are limited due to neck pain, both at work and at home, and with this, the level of disability of the person increases. Loss of endurance, on the other hand, appears as a physical marker in the development of chronic neck pain due to the effect of muscle functions in patients who have problems in the neck region, according to ICF.