Something like Asylum Vol. one- my favorite of all Beachbody workouts. But I read that you would like to maintain your shape, not do anything additional.. Then probably creating a customized schedule will do. Was sidetracked by health issues, yesterday was the first workout for weeks. Much to my shock, http://eduardowyyws.pages10.com/How-Much-You-Need-To-Expect-You-ll-Pay-For-A-Good-max-interval-training-insanity-19477714