Dr. Robert Pettitt has a Ph.D. in Exercise Physiology from the University of Utah and is a research fellow with the American College of Sports Medicine. He holds credentials as a Certified Athletic Trainer with the National Athletic Trainers’ Association and a Certified Strength & Conditioning Specialist with the National Strength & Conditioning Association. Dr. Pettitt has published over 60 peer-review articles, over 70 research abstracts, and authored the textbook Exercise Physiology Laboratories with Kendall-Hunt Publishing. Through his work he has helped pioneer new procedures for submaximal and maximal graded exercise testing along with applications of the critical power concept to the prescription and assessment of high-intensity interval training. For the past six years, he has consulted the Force Science Institute, evaluating human performance in police and SWAT officers.