Workout Update: 645 Cardio/Lift 4 Day 47

Day 47 was Full-Body HIIT in Lift 4 and 645 cardio. The Lift 4 workout was essentially a combination of lower-body HIIT moves with pushups. You do three blocks, each with one leg-focused move and one push-up variation. After the three blocks, you do one burnout round, doing all six exercises with no rest between them. Then, you finish with core, doing three core exercises instead of two. In the 645 workout, I did a lower-impact workout.