Workout Update: 645 Cardio/Lift 4 Day 2

Day 2 was the back and biceps workout from Lift 4 and the 645 cardio workout in the evening. My strategy in Lift 4 was the same as yesterday. Use the heaviest weight I could use and maintain perfect form (and pace) for all 10 reps of the resistance exercises, even if that meant using very light weights for some exercises. This one does not have a HIIT component, but in the evening workout, I could definitely tell my cardio fitness was improving as I did not have to modify any of the exercises I did.