Introduction: The aims of this study were (a) to identify links between transdiagnostic psychological processes and mental health disorder (MHD) symptoms, and (b) to examine differences in MHD and transdiagnostic psychological processes as a function of demographic variables, including, gender, status as an athlete (elite vs. non-elite), number of training sessions per week, previous severe injuries, and use of medical care following severe injuries.
Methods: A total of 159 competitive athletes aged between 18 and 40 years old (44 % female; mean age = 24.