• Johanna Söderberg, Ellen Sallfeldt, Eva Ribom, and Charlotte Urell.
• Department of Surgical Sciences, Orthopedics, Uppsala University, Uppsala, Sweden.
• Ann. Med. 2024 Dec 1; 56 (1): 24099622409962.

BackgroundAdherence to prescribed home exercise is an important predictor for the long-term effectiveness of exercise therapy and therefore important to evaluate. The Exercise Adherence Rating Scale (EARS) is a valid and reliable tool to assess exercise adherence behavior, but it is not translated into Swedish. This study aimed to translate EARS into Swedish and to explore the psychometric properties in terms of test-retest reliability, internal consistency as well and possible floor-/ceiling effects.Materials And Methods  A translation and cultural adaptation process followed international guidelines and resulted in EARS-Sv. A total of 30 patients who had undergone shoulder surgery were included in the study and filled out EARS-Sv at two different time points. The test-retest reliability was evaluated through the weighted kappa coefficient and Intraclass Correlation Coefficient (ICC). Cronbach's alpha was used to assess internal consistency. Floor-/ceiling effects were calculated.ResultsThe test-retest reliability of the questionnaire was good with ICC (0.79, CI 95%) and moderate with weighted kappa-coefficient (MD= 0.58). Cronbach's alpha was considered good (0.88). A ceiling effect was registered in all 6 items of EARS-Sv.ConclusionEARS-Sv has moderate to good test-retest reliability and good internal consistency in patients who have undergone shoulder surgery.

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