I love Low Max! I am s-l-o-w-l-y working my way up to higher intensity. I am used to working out with the Firm which can be high in intensity at times, but it's mostly for strength and toning. I am looking forward to increasing my aerobic endurance using Low Max as a guide! I can't do the whole...
There are a few FIRM workouts from the older sets that pack I powerful punch when it comes to cardio.
http://www.firmdirect.com/firm/ecs/main/dvd.html?docListPage=0
I don't know if this helps, but you can also find The Firm workouts on Amazon.com if the link above doesn't work. Some...