Validity, Reliability of Neck Disability Index in Albanian

Adaptation, Translation, and Cross-cultural Validation of the Cervical Disability Index (NDI) for Use in the Albanian-speaking Population

To translate and validate the Cervical Disability Index (NDI) into Albanian for use in the Albanian-speaking population

The cross-cultural adaptation will be carried out according to the internationally recommended methodology, following the guidelines: translation, back-translation; dissemination of questionnaires and data collection and analysis.

Psychometric properties will be assessed by administering the questionnaire to approximately 400 participants. Reliability will be estimated by assessing stability and homogeneity.

Inclusion Criteria:

• Myofascial syndrome
• Headache
• muscular pain
• articular pain
• arthirtis

Exclusion Criteria:

• contraindications to manual therapy
• severe trauma
• tumor
• metabolic disease