Day 1 of P90X2

Hey everyone I just finished with X2 core a little while ago. I love that workout. I found it to be very challenging in spots. And for those who are worried about the lack of traditional cardio in X2, my heart rate maxed out at 159. The ones that were hard for me were the med ball Dreya Rolls, and the burpees, both on the med ball and on the stability ball. The med ball ones I had to do on my knees...basically jumping back with both feet, going to my knees to do the push up and then standing back up. On the stability ball ones I had to again jump back with both feet as opposed to doing them on one leg, then attempt a push up, and come back up. Overall a fun workout that I look forward to getting better at. Here are my measurements taken right after I got up this morning: Weight - 178.8 Chest - 43" R arm - 12 in L arm - 12.2 in (or so) Waist 39.5 in Hips 40 in R thigh 22.5 in L thigh 23 in Bodyfat, approx 22% The last few weeks I have been having lower back issues, which have finally started to go away. So I was not doing ab ripper, so my core is definitely not as strong as I'd like it to be, but from the feel of that workout, that will improve a lot in this first phase. I will post a before pic later today. Until then, thanks for reading!