This training program follows an exercise protocol that was published in the scientific journal, Physiological Reports in 2015. The program was conducted by a group of researchers at the University of Central Florida. Subjects were placed in one of two groups. The results of the study showed high-intensity training utilizing 4x5 and 6 exercises with 3-minute rest worked best for building strength and muscle hypertrophy. The protocol compared this type of training to a higher volume training format using 4x10-12, with 1-minute rest. The program uses the exact 6 exercises found in the study used in a 4-day training plan. Use 3-minute rest breaks between all sets like in the study. Follow the program for 6-8 weeks. The length of the training sessions is about 90-minutes. PROGRAM LAYOUT Day 1 & 3: Legs/Back/Bicep Day 2 & 4: Chest/Shoulder/Tricep Stay Strong Together, MICHAEL WOOD, CSCS Jefit