Originally Posted by dyna mo

but the biggest reason to do it all by adding some muscle as the foundation is that for long term, there is simply no other way. it's not just the best way to give yourself a shot at staying healthy longterm, it's the only way. again, not bulking up with muscle but certainly something very much like p90x with basic compound movements.

you do get the same compound movement in insanity, but it's flipped around imo. not enough foundation of muscle, but it's a shorter cycle too. it never took off more me though.