Charles B. (“Chuck”) Corbin, PhD, is a professor emeritus in the College of Health Solutions at Arizona State University. He has published more than 200 journal articles and has authored or coauthored more than 100 books, including Fitness for Life, Fitness for Life: Middle School, Fitness for Life: Elementary School, and Concepts of Fitness and Wellness, all of which earned the Text and Academic Authors Association’s Texty award for excellence demonstrated over time. Dr. Corbin is internationally recognized as an expert in physical activity, health, and wellness promotion and youth physical fitness. He has presented keynote addresses at more than 40 state conventions, made major addresses in more than 15 countries, and presented numerous named lectures. He is a past president and emeritus fellow of the National Academy of Kinesiology; a fellow of the American College of Sports Medicine (ACSM), National Association for Kinesiology in Higher Education (NAKHE), and the North American Society of Health, Physical Education, Recreation and Dance Professionals; and an honorary fellow of SHAPE America. His awards include the Lifetime Achievement Award and the Healthy American Fitness Leaders Award from the President’s Council on Sports, Fitness and Nutrition (PCSFN); the Luther Halsey Gulick Award, Physical Fitness Council Honor Award, Margie R. Hanson Award, and Scholar Award from SHAPE America; and the Hetherington Award, the highest honor of the National Academy of Kinesiology. He received distinguished alumnus awards from the University of New Mexico and the University of Illinois. He was selected to the SHAPE America Hall of Fame. He served for more than 20 years as a member of the advisory board of FitnessGram and was the first chair of the science board of PCFSN. Darla M. Castelli, PhD, is a professor in the department of kinesiology and health education at the University of Texas at Austin. Her work examines the effects of physical activity and metabolic risk factors on cognitive health. Dr. Castelli strives to understand how physical activity can reverse the effects of health risk. She has been working with school-age youth in physical activity settings for more than 25 years, leading several physical activity interventions (e.g., Kinetic Kidz, FITKids1, FITKids2, Active + Healthy = Forever Fit, and Fitness 4 Everyone). Dr. Castelli has received teaching awards in both the public school setting (e.g., Maine Physical Education Teacher of the Year) and in higher education (e.g., University of Illinois Teaching Excellence Award and University of Texas at Austin Kinesiology and Health Education Graduate Teaching Award). She is an active fellow in the National Academy of Kinesiology. As a fellow in the SHAPE America Research Council and a past Young Scholar Award recipient from the National Association for Kinesiology and Physical Education in Higher Education (NAKPEHE) and the International Association for Physical Education in Higher Education (AEISEP), her research has been funded by the National Institutes of Health, the Robert Wood Johnson Foundation, the American Dietetic Foundation, and the U.S. Department of Education. She has presented her work at U.S. Congress and Senate briefings in Washington, D.C., in support of the FIT Kids Act. Dr. Castelli has been a member of two Institute of Medicine committees, one on fitness measures and health outcomes in youth physical activity and one on physical education in the school environment. She received a BS from Plymouth State University, an MS from Northern Illinois University, and a PhD from the University of South Carolina. Benjamin A. Sibley, PhD, is a professor in the department of recreation management and physical education at Appalachian State University. Dr. Sibley received a BS in exercise science from Wake Forest University, an MAT in physical education from the University of South Carolina, and a PhD in sport and exercise psychology from Arizona State University. He is designated as a Certified Strength and Conditioning Specialist (CSCS) by NSCA, is certified as a CrossFit Trainer (CF-L3), and has served as a NASPE Physical Best Instructor. He has been a member of SHAPE America since 2003, currently serves on the SHAPE America Professional Preparation Council, and has served on the editorial board for the Journal of Physical Education, Recreation and Dance (JOPERD). Dr. Sibley has published and presented numerous papers on physical activity among children and adults, in particular addressing motivation for physical activity and the relationship between physical activity and cognitive performance. In his leisure time, Dr. Sibley enjoys exercising, outdoor activities, cooking, and spending time with his wife and two children. Guy C. Le Masurier, PhD, is a professor of sport, health, and physical education at Vancouver Island University in British Columbia, Canada. Dr. Le Masurier has published numerous articles related to youth physical activity and physical education, and he has given more than 50 research and professional presentations at national and regional meetings. He is the lead author of Fitness for Life Canada and coauthor of Fitness for Life, Seventh Edition; Health Opportunities Through Physical Education; Fitness for Life: Middle School; and Fitness for Life: Elementary School. Dr. Le Masurier has served as an editorial board member for Research Quarterly for Exercise and Sport and the International Journal of Physical Education, and he reviews research for numerous professional journals. Dr. Le Masurier is a research fellow of SHAPE America. He serves his island community as a volunteer firefighter and loves to grow vegetables.