Idiot's guides.

Includes index

Getting started with HIIT -- Dynamic warm-up -- Level 1 routines -- Level 2 routines -- Level 3 routines -- Cardio exercises -- Upper-body exercises -- Core exercises -- Lower-body exercises

High-Intensity Interval Training (or HIIT) is a new workout trend that involves short, intense bursts of exercise, followed by periods of lower-intensity exercise or rest. In turn, the body burns more calories in a shorter period of time than traditional exercise routines. Idiot's Guides: High-Intensity Interval Training is a full-color, step-by-step guide that is packed with over 80 exercises, structured routines, and intense programs that can be done anywhere, anytime. --