What is HIIT? HIIT, or high-intensity interval training, is a training technique in which you give all-out, one hundred percent effort through quick, intense bursts of exercise, followed by short, sometimes active, recovery periods. This type of training gets and keeps your heart rate up and burns more fat in less time. (Source: DailyBurn)
This workout suitable for ALL fitness levels and ages. To decrease the intensity either go down in weight or take the LOW options. To increase intensity increase the weight. It is very important to stay on time with the rests. The goal of this workout is to give it 100% effort during your moves followed by rest. Make sure you stay on time with your rests. If you rest too long or too short you will not get the proper workout. You are supposed to feel out of breath in this workout. What I do to keep track of time is to set my stopwatch on my phone and sit it next to me or to wear a stopwatch.