I did level one last week. Level one, modified version (easy). I had to modify it more, and stop and rest while the instructors continued. I was very sore for 2 days. This morning, I'm giving it another try. I really want to tone up and walking has been unappealing because of the heat. Level One is a 20 minute circuit of exercises that features cardio and strength training-wish me luck!
It is supposed to be 103 degrees this afternoon, and you know where I'll be....resting my sore muscles in a cool pool.