This is what makes Insanity (and everything like it) sound like a poor program to me. Exercise is all about consistency, whether it's lifting 2/3 times per week or going for a run/swim every morning. I don't see what doing one 60 day program is going to do for you in the long-term. It seems very popular amongst the get-fit-quick crowd, but I've yet to see anybody who's done it end up looking like the guy from the infomercial.In a nutshell it was just too much volume, jumping, impact etc. to make it a sustainable long term workout.
"The problem with quoting someone on the Internet is, you never know if it's legit" - Abraham Lincoln
I don't know, if you're doing insanity "correctly" you should be around max heart rate almost the entire time. 30-45 minutes of that 5-6 days a week for two months is the very definition of chronic cardio. When I was done I was well conditioned... at doing lots of jumps in a half hour's time. Didn't really have much practical use or benefit to my particular life activities considering the effort put in. I got my body fat % and muscle tone exactly where I wanted it with much less effort/frequency and more interesting workouts.
Bottom line for most people when you mix heavy endurance training and strength training the strength mostly gets cancelled out. I just don't see the point to adding strength workouts to it in terms of return one is likely to get based on time investment. I don't know anybody who hasn't done 2 a day programs longterm without suffering overtraining symptoms, either just stressing the body hence getting no results, if not actual physical injury.
But to each their own I guess.
i've only been on the program since monday, but aren't having too difficult of a time with the dvd workout and added strength workouts. i haven't really bumped up my carbs that much, either. i do the dvd early morning, and the strength at noon or some time around 2 or 3 p.m. i feel fine for the most part, just my legs (mostly calves) are a little sore. i don't plan to really do the same thing long term. after i complete the 60 day program, i'll pull out a dvd a few times each week. probably plyo because that's one of my fitness goals, is being able to have better cardio conditioning and jumping capabilities. why do you think the strength gets "cancelled out" by me doing the endurance work also?