"ChiRunning combines the ancient wisdom of T'ai Chi with modern physics to transform your running experience. This easy-to-follow video gives you clear, step-by-step lessons for every aspect of the ChiRunning technique. ChiRunning goes beyond traditional cardiovascular and aerobic conditioning by incorporating energy efficiency and injury prevention techniques into your running form. You will learn to use your highly efficient core muscles while relaxing the rest of your body, utilizing gravity - instead of your legs - to propel you forward on the path to effortless and pain-free running. Danny Dreyer is the creator of ChiRunning and ChiWalking..." -- back cover.