This manual is the most complete and updated guide about “HIIT Training” available. Not only it is the summary of everything you need to know about getting in shape, burning fat, building muscles and maintaining your condition but also it is a scientific workout program designed to provide maximum results with minimum effort.This is a scientific text that combines the most updated information with practical experience in training. In fact, it is the result of 11 months of study and research carried out by our best trainers, each of them with more than 7 years of experience in HIIT.The strength of this book is its integrity: Fitness Academy doesn’t want to sell to you a new revolutionary method or magical solutions. We prefer to present you the subject in a scientific and objective way, in order to give you the necessary knowledge to train correctly and effectively. HIIT stands for High Intensity Interval Training. The most efficient and diversified exercise that helps you reach your fitness goals and maintain your best physical condition with intense and effective short workouts.Studies show that HIIT Training is the best activity for:• Body recomposition: burn fats, define your muscles and start the process for muscular hypertrophy.• Improving all the primary physical skills, like resistance, power, strength and agility.• Improving your physical condition, making you feel healthier and younger (biological rejuvenation).In this program Fitness Academy presents one of the most effective weight loss training plan using High Intensity Interval Training that takes only few minutes per day. HIIT workout is scientifically proven to be an efficient cardiovascular training for burning fat and increasing muscle mass.Here is a preview of what you will discover in HIIT:• Everything you need to know about High Intensity Interval Training (HIIT) and why you should start today.• Simple tests to help you evaluating your current level of fitness.• All you need to get the best out of your HIIT sessions.• Workout routines program with effective exercises for every type of fitness goal.• 10 critical things and false beliefs you need to know before diving into HIIT.• Incredibly effective HIIT workouts that you can perform anywhere, without tools, that last up to 10-15 minutes and make you achieve maximum results.• The best HIIT workouts for beginners, expert and advanced athletes.• 10 warning signs of overtraining, how to set an adequate body rest and injury prevention.• The HIIT diet that helps you lose those extra pounds and resume your perfect shape.and much more!If you have never done a single Push-Up before or want to step up your Training Sessions, improve your Fitness Levels and get through the highlands, this guide will show you how to achieve your fitness goals in half time!