The purpose of this study was to investigate cultural adaptation, reliability and validity of the Turkish version of the Headache Disability Questionnaire (HDQ).

When the outcome criteria for the physiotherapy of headache are considered in clinical studies and practice, parameters such as headache frequency, duration and severity are frequently used. Physiotherapists treat musculoskeletal dysfunction in various types of headache, including migraine, tension headache, and cervicogenic headache. The Headache Disability Questionnaire (HDQ), which was developed to measure the quality of life of a general population receiving physiotherapy and experiencing headache, evaluates the pain intensity, daily life activities, disruptions in work or school life, and the influence of the recreational activities of individuals. HDQ consists of 9 items and each item is rated between 0 and 10. Increasing the score indicates the seriousness of the impact. The study is planned with 45 individuals with gluteal tendinopathy. After questioning the sociodemographic characteristics of the individuals, the patients will be asked to fill in HDQ, Migraine Disability Assessment Questionnaire, Headache Impact Test-6 and Short Form-36.Test-retest will be re-applied to those of the same individuals who can be reached after 1 week. The results will be analyzed using the SPSS version 22.0 computer package program.

Inclusion Criteria:

• Diagnosed with any type of headache,
• Have a chronic headache.

Exclusion Criteria:

• Having a cognitive and neurological disorder.

The study population will consist of individuals with any type of headache.