Hey guys, I'm so glad I found this thread! I just started P90x and am just finishing up week 1. I'm doing sort of a modified version though since I live in an old apartment building with very thin floors and thus can't do any of the jumping activities, so instead of plyo and actually cardio, I'm running outside on those days. I feel kind of cheated because plyo is supposted to be really tough, but oh well, p90x is tough enough anyway and with the weather getting warmer, I have to be outside
I did legs and back yesterday and while I was doing it, I was thinking, "this is hard, but not too bad." Today my butt muscles are so sore that I can barely sit down! I couldn't finish all of the exercises, but I didn't feel like I was going to die or anything. The same thing happened with the ab ripper. I couldn't finish everything, overall it wasn't too bad, but then my abs killed from Monday until Thursday! At least I know it's working...
I have to go back and read the rest of the thread now - it's great to hear how each person is doing as they progress through the program. Good luck everyone!