A randomized controlled trial of unguided internet cognitive–behavioral treatment for perfectionism in individuals who engage in regular exercise

Objective Clinical perfectionism has been found to be a risk and maintaining factor in eating disorders (EDs), compulsive exercise, and athlete burnout. This study investigated whether an unguided internet cognitive–behavioral treatment (ICBT) for perfectionism would reduce ED pathology, compulsive exercise, and burnout in individuals who engage in regular exercise. Method Participants were randomly allocated to intervention (n = 38) or waitlist control (n =29). A generalized linear mixed model (GLMM) analysis was conducted pre and post treatment. A follow‐up analysis was conducted with the intervention group at 3 and 6 months. Results The intervention group experienced a significant reduction in perfectionism (FMPS‐CM: F[1,117] = 17.53, p =