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Get lean, build muscle, and stay healthy A Fitness Hall of Fame inductee and world-famous exercise scientist explains high-intensity interval training and the nutrition that complements it, and provides a wealth of workouts, including workouts you can do at home, so you can get and keep the body you've always wanted.

High-intensity interval training (HIIT) is an extraordinarily effective form of training that mixes high- and low-impact activities during periods ranging from seconds to eight minutes. In HIIT Your Limit, Dr. Len Kravitz, a National Fitness Hall of Fame inductee and internationally-renowned exercise scientist for the past thirty-six years, explains what HIIT is and how it effects your entire body (externally and internally), gives 50 workouts and a plan to whip you into shape fast, and presents a wealth of nutritional and other advice to further its impact.

HIIT was recently rated the #1 new fitness trend by the American College of Sports Medicine and is the key to staying fit for celebrities like David Beckham, Britney Spears, Hugh Jackman, and Scarlett Johansson. In addition to fat loss, it's been proven to have major health benefits on blood pressure, diabetes, and cholesterol. Through this groundbreaking volume you'll learn why, and see how to get fit quick and have a fun and truly sustainable exercise program, no expensive personal trainer required.

Dr. Len Kravitz has thirty-six years of experience as a researcher, writer, and speaker on fitness, and is the coordinator of exercise science at the University of New Mexico. He is the author of Anybody's Guide to Total Fitness (now in its eleventh edition with nearly 100,000 copies sold), and Essentials of Eccentric Training; has published more than 300 articles in dozens of health and fitness publications; and regularly travels the country as a speaker on fitness and health. Among other awards, he was inducted into the National Fitness Hall of Fame. Dr. Kravitz lives in Albuquerque, New Mexico.