Workout Update: Lift 4/Shaun 20/645 Cardio hybrid: Day 51

On day 51, I did the Cardio Circuit workout from Shaun 20, and the legs (50/50) workout from Lift 4. Like the chest and back workout yesterday, the leg workout has the same exercises as last week, but in a different order. Also, like last week's version of the leg workout, you do each of the three exercises for 30 seconds in each set in the HIIT portion. It was challenging, but I was able to use the same amount of weight for this week's workout as I did last week for all the exercises.