High Intensity Interval Training alternates between high-intensity and low-intensity exercise. For example, sprinting for 30-seconds, then walking for 60-seconds is high intensity interval training. HIIT can be used both anaerobically in the gym with weights and aerobically with cardio.
There are a number of great benefits to High Intensity Interval Training besides serious fat burn that include:
- Increased Aerobic Capacity – The amount of oxygen your body can use (oxygen uptake) is increased, so your overall aerobic capacity can increase faster than with low intensity endurance exercise
- Increased Lactate Threshold – Your ability to handle increased lactic acid buildup in your muscles increases
- Improved Insulin Sensitivity – Your muscles more readily suck in glucose, instead of the glucose going to your fat stores
- Anabolic Effect – Some studies show that interval training combined with consuming slightly more calories than you burn creates an anabolic effect, which helps you put on muscle. The opposite occurs with steady state cardio, which for long durations is catabolic.6