Higher intensity exercise burns more calories in a shorter amount of time. Fat loss boils down to calories in versus calories spent, all while supporting your lean muscle mass. When your heart rate is higher, workouts such as HIIT create a metabolic disturbance that provides you with an afterburn effect where your body will continue to burn calories after exercise has stopped. There are also studies that show the burning of stored fat is increased due to high intensity exercise. A better rule of thumb for your heart rate…. listen to your body, and if you have more to give, then go for it! Break a sweat!
Sara Sutherland, Fabletics Master