Thanks for writing. You are right. There are many similarities between the two workouts. The main difference is A.M.P. is a longer workout (around 35-45 min) vs. High Intensity Training (20-25 min). We also get down to the ground in almost every A.M.P. workout. Early on, we received feedback from some that couldn't get to the ground or handle a longer workout, so we try to provide two different levels. Much of the research that points to slowing the progression of the disease is based on the principles of intensive exercise with BIG, functional movements. We want to give members different options to achieve those goals based on their functional abilities.
I hope this helps. Please let me know if you have any other questions.