Reliability and criterion validity of the Turkish version of the Recent Physical Activity Questionnaire

Background: This study aims to determine reliability and criterion validity of the Turkish version of the Recent Physical Activity Questionnaire (RPAQ). Materials and methods: The study included 146 individuals aged 18–45 years. Translation and cultural adaptation of the questionnaire was performed with regard to an appropriate procedure. Test–retest reliability was analyzed in terms of intraclass correlation coefficient (ICC). For assessment of validity of the questionnaire, the criterion validity method was used. Criterion validity was evaluated using a pedometer, which is an objective measurement tool. The correlation between the total number of steps recorded during a week and RPAQ scores was examined. The validity was evaluated using Spearman correlation analysis. Results: The ICC value was 0.96 for total PAEE (physical activity energy expenditure) and between 0.77 and 0.97 for home, work, recreation, and transportation PAEE. The duration of intensity levels varied between 0.80 and 0.97. Test–retest reliability of RPAQ was high. A moderate correlation (r = 0.472) was found between the total value of RPAQ and the number of steps, and a weak-to-moderate correlation (r = 0.210–0.442) was found for other dimensions. No correlation was found with home activities. Conclusion: The Turkish version of RPAQ is valid and reliable. RPAQ can be used to assess the physical activity level of the Turkish population.