High-intensity interval training (HIIT) is a form of interval training, a cardiovascular exercise strategy alternating short periods of intense anaerobic exercise with less intense recovery periods, until too exhausted to continue. Interval training combines short, high-intensity bursts of speed, with slow, recovery phases, repeated during one exercise session. The training develops both strength and endurance, using your body weight and extra weights.
HIIT training provides an opportunity to make maximum effort in the shortest possible time, thus being ideal for those who have little time to train. HIIT training is a great way to burn calories fast, lose weight and develop strength and endurance.