Sessions and workouts of exercises of high intensity training (HIIT) The Training of intervals of high intensity (HIIT), also called intermittent high intensity exercise (HIIE) training or sprint intervals (SIT), is an enhanced form of interval training, a strategy of exercise that alternates periods of anaerobic exercise intense short periods of less intense recovery. The HIIT is a form of cardiovascular exercise. Usually the sessions HIIT can vary between 4 and 30 minutes. These short, intense workouts provide athletic capacity and condition improved, high glucose metabolism, and elevated burning of fats. In this app you will find sessions and workouts of high-intensity training. Videos that allow you to continue the exercises at home or in the gym. Cardio training and crunches. Short sessions of HIT that will allow you to reconcile with your day-to-day. And to finish, a session of stretching. If you want to show off a flat stomach and a great figure this is the app that you are looking for. To be able to perform this type of high-intensity exercise is necessary to have a minimum of physical preparation, as the HIIT exercises are high demand not suitable for people that do sport on a regular basis.