Low back activity confidence scale: Cross-cultural adaptation, reliability, and validity of the Turkish version in individuals with non-specific low back pain.

J Back Musculoskelet Rehabil

Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, Ankara, Turkey.

Published: March 2025


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Article Abstract

BackgroundThe Low Back Activity Confidence Scale (LoBACS) was developed to evaluate self-efficacy in individuals with low back pain (LBP).ObjectiveThis study aimed to assess the psychometric properties of Turkish version of LoBACS in individuals with non-specific LBP.MethodsThe study included 105 participants (66 female, 39 male) with a mean age of 40.94 ± 14.65 years. The cultural adaptation and psychometric evaluation of LoBACS followed international standards and COSMIN guidelines. Reliability was assessed using the Cronbach's α and Intraclass Correlation Coefficient (ICC). Structural validity was tested with Confirmatory Factor Analysis (CFA). Pearson correlation analysis examined the relationships between LoBACS and the Waddell Disability Index (WDI), Modified Oswestry Disability Index (MODI), Roland Morris Disability Questionnaire (RMDQ), International Physical Activity Questionnaire (IPAQ), Short Form-36 (SF-36), Fear Avoidance Beliefs Questionnaire (FABQ), and Visual Analog Scale (VAS).ResultsThe Turkish version of LoBACS showed high reliability (ICC = 0.850, Cronbach's α = 0.919). CFA and fit indices supported its validity. Correlations between LoBACS and other measures ranged from -0.192 to 0.542. No floor or ceiling effects were noted.ConclusionThe Turkish version of LoBACS is a reliable and valid tool for assessing self-efficacy in individuals with non-specific LBP, suitable for both research and clinical settings.

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http://dx.doi.org/10.1177/10538127241307068DOI Listing

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