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 often should I exercise during 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? Comments 0 comments Please sign in to leave a comment.