What Is High Intensity Anaerobic Exercise?
What Is High Intensity Anaerobic Exercise? Anaerobic exercise involves short, fast, high-intensity exercises that don’t make your body use oxygen like it does for cardio (or aerobic) activities. Instead, anaerobic activities break down glucose that’s already in your muscles for a form of energy. Is high intensity aerobic or anaerobic? HIIT, by contrast, is anaerobic: