Roy T. Benson, MPE, CFI, is an exercise scientist and distance-running coach. He has run competitively for more than 40 years, and he has coached professionally for 46 years for military, club, university, and high school teams. From 1993 to 2008, his boys’ and girls’ cross country teams at Marist High School in Atlanta, Georgia, won a total of 16 state championships and his cross country and track runners won 21 individual state titles. Benson is also the owner and president of Running, Ltd., a company that has been operating Nike-sponsored summer camps for both adult and high school runners since 1972.Benson has been a consultant about heart rate training for both Polar and Nike and has written three books for runners on the subject. He also serves as a special contributor to Running Timesmagazine and has been a contributing editor forRunning Journalmagazine. His booklet Precision Running, published by Polar Electro, has sold over 200,000 copies and has been translated into seven languages. Sales of Coach Benson’s Secret Workoutsbook have reached more than 7,000. Benson lives on Amelia Island, Florida.Dr. Declan Connolly, FACSM, CSCS, is a professor and exercise physiologist at the University of Vermont where he is also director of the Human Performance Laboratory. He consults to numerous sports organizations including the National Hockey League, the National Football League, U.S. Rowing, and U.S. Skiing and has served as a consultant to the International Olympic Committee on several occasions. In addition to more than 300 publications in scientific journals, his work is widely quoted in the popular media, including stories in the New York Times, Los Angeles Times, London Times,Runner’s World, Prevention, Health,and Self. His work appears on more than 24,000 Web sites and has been the subject of news stories on Fox, BBC, CBS, and numerous other TV and radio networks.Connolly is a lifelong exerciser and athlete, boasting several national cycling championships as a school boy in his native Ireland. More recently he has turned his focus to triathlon and Ironman competitions. Connolly lives in Burlington, Vermont.