This is a 2-day routine that places a great deal of emphasis on your (low) back, glutes and abs, which is basically your core. Developing strength in these specific areas is a prerequisite for any compound movement you perform, especially overhead presses or leg work like a squat. The program includes two unique sessions that last between 30-35 minutes. Each workout offers both traditional sets and repetitions as well as intervals, that last between 20-30 seconds per exercise. Both workout sessions also include multiple supersets. Stay Strong, MICHAEL WOOD, CSCS Jefit Team