ArticleIranian journal of medical sciences2020
Development of the Persian Version of Knee Outcome Survey Activities for Daily Living Scale.
Article in Iranian journal of medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- The effect of incorporating whole body vibration into exercise therapy on the corticomotor excitability of the quadriceps in athletes following anterior cruciate ligament reconstruction.Scientific reports · 2025Trial
- Translation and psychometric evaluation of the Danish version of the knee outcome survey - activities of daily living scale in patients with anterior cruciate ligament injuries.BMC musculoskeletal disorders · 2025Article
- Validation of the Polish Version of Knee Outcome Survey Activities of the Daily Living Scale in a Group of Patients after Arthroscopic Anterior Cruciate Ligament Reconstruction.Journal of clinical medicine · 2023Article
- Recovery of Quadriceps Strength and Knee Function Using Adjuvant EMG-BF After Primary ACL Reconstruction.Journal of lasers in medical sciences · 2023Article
- Cross-Culturally Adapted Versions of Patient Reported Outcome Measures for the Lower Extremity.International journal of sports physical therapy · 2023Article
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Authors and funding
5 authors.
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Abstract
backgroundThe knee outcome survey-activities of daily living (KOS-ADL) scale is a self-reported measure to determine knee function and symptoms in individuals suffering from a variety of knee disorders. The present study aimed to assess the validity, reliability, and cross-cultural adaptation of the Persian version of the KOS-ADL scale.
methodsIn this cross-sectional and psychometric study, 130 patients (14 men and 116 women) with different grades of knee osteoarthritis were recruited. The construct validity of the scale was examined through the correlation between the domains of KOS-ADL and the subclasses of the knee injury and osteoarthritis outcome score (KOOS). To assess the test-retest reliability, 40 of the participants were requested to fill in the questionnaire again with an 8-day interval. The internal consistency of the questionnaire and its subclasses was evaluated with Cronbach's alpha coefficient. To evaluate construct validity, concurrent construct validity was examined with a correlation matrix using Pearson's correlation coefficients between the KOS-ADL domains and KOOS total score and subclasses. The test-retest reliability was analyzed using the intra-class correlation coefficient (ICC). The Kappa coefficient was used to determine the intra-rater agreement.
resultsThe Persian version of the KOS-ADL scale had good reliability (ICC=0.79) and internal consistency (α=0.92). There was a good correlation between the KOS-ADL total score and KOOS subclasses (r≥0.71, P≤0.001).
conclusionThe Persian version of the KOS-ADL scale is a valid and reliable instrument to evaluate the symptoms and functional status of people suffering from knee osteoarthritis.
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