Who designed the AF Challenge workouts? 20 September 2021 01:01 Updated All workouts have been designed by our AF Challenge head programmers. All are qualified trainers and experts in their field. Related articles What is the AF Challenge? How do I enter to be the national winner of the AF Challenge? What is included in the Anytime Fitness Australia membership agreement? Can I change my workout and meal plan once I have started the AF Challenge? How often should I exercise during AF Challenge? Comments 0 comments Please sign in to leave a comment.