A validated Chinese version of Exercise Dependence Scale-Revised (EDS-R) is currently lacking. Thus, this study aimed to investigate the psychometric properties of this translated scale in a Chinese sample. Following a forward-backward translation of the EDS-R, the Chinese version (EDS-C) and validated scales assessing associated constructs were administered to a large sample of habitual exercisers (N = 1447, 54.4% male) in several universities and communities in China. Confirmatory factor analysis (CFA), gender-based invariance test, internal consistency and test-retest reliability, and construct validity were completed. EDS-C confirmed the original seven-factor structure (TLI = .94, CFI = .95, RMSEA = .068, SRMR = .032). Moreover, gender-based invariance and good internal consistency (Cronbach α [0.73 to 0.93 for sub-scales]) could be demonstrated. Beyond that a moderate test-retest reliability was observed [r: 0.45-0.82]. Finally, positive associations of the EDS-C with exercise frequency and eating disorder symptoms, body image inflexibility, and generalized anxiety symptoms appeared. Based on these results, the EDS-C appears to be a psychometrically sound screening tool for exercise dependence in Chinese sample aged between 17 to 70 years.
Keywords Exercise addiction • Factor analysis • Validity • Reliability • QuestionnairePhysical exercise is defined as a type of physical activity that is performed in a regular manner, for instance, in a structured training plan. Regular physical exercise engagement has been linked to a myriad of physical and mental health benefits (Budde & Wegner, 2018;Caspersen et al., 1985;Guiney & Machado, 2013). Previous studies have provided converging evidence that regular exercising is associated with a reduced risk of several chronic diseases and premature mortality (Anderson & Durstine, 2019) as well as a decreased risk of developing depressive disorders (Cooney et al., 2013). However, a small proportion of those individuals engaging regularly in physical exercise may also experience adversity,