High intensity interval training, or HIIT, is an exercise program that alternates short, intense exercise with recovery periods that are less intense. It tends to be shorter than typical cardiovascular exercise because the benefits of the intensity make up for the shorter time. Most HIIT workouts last less than 30 minutes, with some lasting less than 10 minutes.Those who perform HIIT find that their aerobic and anaerobic capacities are greater, their stamina is increased, and they are able to burn fat more easily than they did with longer periods of exercise due to using more muscles than in typical aerobic exercise. In addition to the benefits in stamina and aerobic capacity, HIIT increases the resting metabolic rate for a full 24 hours after exercise. HIIT is also useful for highly conditioned athletes to continue to improve their athletic performance.A typical workout consists of a standard warm up followed by fewer than 10 cycles of high-intensity exercise and a medium intensity recovery period.

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HIIT: What is High Intensity Interval Training?

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