Ann L. Gibson, PhD, FACSM, is a professor and researcher in exercise science at the University of New Mexico, with research interests in body composition and physiological responses to exercise. She has presented obesity research internationally and has published original research in journals such as Medicine & Science in Sports & Exercise, American Journal of Clinical Nutrition, International Journal of Sport Nutrition & Exercise Metabolism, Research Quarterly for Exercise and Sport, and Journal of Bone and Joint Surgery. She is a member of the American College of Sports Medicine (ACSM), the National Strength and Conditioning Association (NSCA), and the Clinical Exercise Physiology Association (CEPA). Gibson resides in New Mexico, where she enjoys spending time outdoors hiking, biking, snowshoeing, cross-country skiing, and gardening. Dale R. Wagner, PhD, FACSM, is a professor of exercise physiology at Utah State University. His research interests include body composition assessment and exercise physiology at high altitude. He has been an active researcher for 25 years and has authored over 80 peer-reviewed journal publications. Wagner is a member of and holds certifications from the American College of Sports Medicine (ACSM), the National Strength and Conditioning Association (NSCA), and the American Society of Exercise Physiologists (ASEP). He is a past president of the Southwest chapter of the ACSM and of ASEP, is a research council member of the Wilderness Medical Society, and is a former associate editor of Research Quarterly for Exercise and Sport. In his spare time, Wagner enjoys mountaineering, road and mountain cycling, and international travel. Vivian H. Heyward, PhD, is a regents’ professor emerita at the University of New Mexico, where she taught physical fitness assessment and exercise prescription courses for 26 years. In addition to the previous editions of this book, she authored two editions of Applied Body Composition Assessment (Human Kinetics, 1996, 2004) as well as numerous articles in research and professional journals dealing with various aspects of physical fitness assessment and exercise prescription. Heyward has received many professional awards, including the SWACSM Recognition Award for distinguished professional achievement and the Distinguished Alumni Award from the University of Illinois and the State University of New York at Cortland. In her free time, she enjoys hiking, nature photography, golfing, and snowshoeing. Heyward resides in Albuquerque, New Mexico.
