HIIT or high-intensity interval training, is a training technique in which you give all-out, one hundred percent effort through quick, intense bursts of exercise, followed by short, sometimes active, recovery periods. HIIT Programs are Very Interesting, Fun Based & Can Consist of Different Types of Mixed Exercising Routines Such as... Cardio, Strength, Agility, Stretching etc...This type of training gets and keeps your heart rate up and burns more fat in less time & also Provide Good overall Fitness.