Core Synergistics

I am on week 4 of the P90x -Insanity hybrid, which is a recovery week- or an easy week. The last Insanity workout was pretty low intensity compared to the rest of the Insanity workouts. Tonight was P90x core synergistics. I was expecting this to be easy, but it was a little more challenging than I expected. I burned 460 calories in a 58 minute workout. Most of the workouts with a little more cardio I burn a few more calories -but this one did do the trick. I am not so solid on the core work-so I was sweating. Anyway the goal this week is to try to get in some workouts done to stave off the Christmas weight gain.