 Any time is a great time to recommit to a healthy, active lifestyle and spread the word about the benefits of physical fitness. High Intensity Interval Training, or HIIT, is a cardiorespiratory training technique that enhances physical performance through repeated periods of high intensity exercise, followed by a low intensity or resting period. This concept has become increasingly popular among athletes and recreational exercisers alike. Total workout time can range from only 4 to 30 minutes and can be done in a variety of settings such as group fitness classes, outdoor running and even on exercise machines. Benefits of HIIT can include improved heart and lung function, increased metabolism and reduced body fat. For more ways to help you stay in shape, talk to your Command Fitness Leader.