Workout Update: 645 Cardio/MBF Day 1

This is my second time doing doubles with the 645 cardio workout and the MBF workout. I did the cardio workout in the morning and then the MBF week 1 lower-body burn workout. This time through the workout, I had a much better idea of what weights to use since the workout basically has no breaks once it gets going and has a lot of reps. The weight I used ranged from 10 lbs to 20 lbs, which is plenty given that you do volumetric training (very fast and a large number of reps).