If you’ve been around a gym or know people who work out, then you’ve probably heard the acronym HIIT, which stands for High Intensity Interval Training. Various programs, including CrossFit, offer this type of training, which implements functional movements at a high intensity.
High Intensity Interval Training methods can be applied during running or to various exercises, such as squatting or kettlebell swings. This type of training is considered to be more effective than your standard “cardio,” because the intensity is at a level in which you are able to increase both your aerobic (with oxygen) and anaerobic (without oxygen) endurance while burning off that excess fat. The anaerobic system provides energy for short bouts of exercise while the aerobic system is involved with prolonged exercise. (This is another subject in itself, which I will discuss in the future.)