This exercise is performed just like Cat Cow, except you are on your feet, not your knees and your hands are on a chair or something at a height between your knees and your hips. Now, I don’t know where this one appears in the workouts. I wonder if B’s intention is to use this in place of Cat Cow in the workouts for certain people. If so, we need to know whom and why. If not, I need some clarification.