Len Kravitz, PhD, an international fitness expert, has been an associate professor of exercise science at the University of New Mexico since 1999 and the coordinator of the department since 2000. A leader in the fitness industry for three decades, he has written more than 250 peer-reviewed articles. Since 1989 he has been a contributing editor to IDEA Health and Fitness Association's "The Health and Fitness Source," the voice of the largest trade organization for fitness professionals. He has also given more than 1,000 presentations at the most prestigious fitness conferences in the world, including ACSM Health and Fitness, IDEA World, and canfitpro in Toronto. His two dozen awards are highlighted by the 2011 Distinguished Alumni Award from San Jose State University, the 2009 Canadian Fitness Professional Association Specialty Presenter of the Year, the 2006 American Council on Exercise Fitness Educator of the Year, the 2003-04 University of New Mexico Outstanding Teacher of the Year, and the 2003 Lifetime Achievement by the ECA World Fitness Association. Kravitz earned his doctorate in health, physical education, and recreation, with an emphasis in health promotion and exercise science, from the University of New Mexico in 1994. He is a member of the American College of Sports Medicine and the National Strength and Conditioning Association. Aaron Bubbico, MS, earned his master's degree in exercise science from the University of New Mexico. During his undergraduate and graduate studies, his work was published in the "IDEA Fitness Journal" for a cutting-edge review of eccentric exercise training. Bubbico has written another review on current research in muscle hypertrophy. He is a certified strength and conditioning specialist (CSCS) and a CrossFit level 1 trainer. For a decade Bubbico has been working with clients of various ages and abilities, from novices to professionals. He focuses on helping his clients achieve their highest possible levels of fitness by incorporating a focused approach for strength, stability, conditioning, mobility, and nutrition. He loves spending time with his wife and two sons and competing as a CrossFit athlete and IFPA professional natural bodybuilder.