Karen Katz is a highly sought-after New York-based personal trainer and group fitness instructor. After years of clients asking how they could take their workouts with her, she created Karen Katz Fitness.

When she came to me, she had shot three videos in her parents’ rec-room. They’re fantastic, but we decided to take them to the next level. We shot in the beautiful Mercedes Club, and I edited the videos and added titles so that there’s no difference between Karen’s workouts and the fanciest fitness services.