Description
High intensity interval training - HIIT for short is the science- backed way to stay in shape without spending hours in the gym. This type of training involves alternating between periods of maximum effort and short recovery.
In this book, you'll learn all about the high intensity interval training system - what it is, where it comes from and how to make it work for your body. We'll show you how to go from HIIT beginner to high-intensity pro in just 12 weeks and over three grades of exercise intensity - Level 1, Level 2 and Level 3.
