Why Box Squat? September 25, 2014 By Coach Carlos Workout of the Day A. DE Upper Body B. Complete as many rounds and reps as possible in 7 minutes of: 40 Double-Unders 20/15 Hand-Release Push-Ups Rest 7 minutes Complete as many rounds and reps as possible in 7 minutes of: 20 Box Jumps (24″/20″) 10/5 Ring Dips