Regardless of your current fitness level, an Interval training program can help you develop a more active lifestyle and burn fat more effectively and in less time than a traditional fitness routine. With some basic information and as few as three 20-minute workouts a week, you can use high intensity Interval training to make your workout work for you.
The reason Interval training works so well is simple: muscles working at maximum capacity burn fat more effectively and for longer periods of time. In fact, the secret to rapid weight loss has less to do with the workout itself than the rate at which fat continues to be burned afterward. If the workout was intense enough, the muscles likely will have depleted their stores of glycogen carbohydrates and will replenish them by drawing sugar from the bloodstream and storing it as energy inside the muscle. With that source of glycogen gone, the body has only one other energy source to keep itself powered — body fat. Fat burns intensely for about one hour following an Interval training workout and continues to burn at a reduced rate for several hours more. The rate at which this process occurs is linked directly to the intensity and duration of the workout.
Interval training is about pushing your endurance level to its maximum safe limit for a period of time, then allowing the body to recover enough to tackle another bout of high intensity. For a beginner, that might mean walking at a brisk pace for one minute and strolling for five. A marathon runner seeking to boost his speed might sprint for 15 seconds and jog for five minutes. The key is to maintain the maximum pace you can safely achieve for as long as you can without slipping into a less-beneficial aerobic mode. That’s why the rest interval is so important. It allows your body to recover fully from the sprint interval so it can expend maximum energy again. The point is to raise your anaerobic threshold, or the rate at which muscles fatigue due to the buildup of lactic acid that accompanies short bursts of intense exercise. Raising that threshold is especially valuable to athletes competing in football, soccer, hockey and other sports requiring brief yet intense bouts of activity.
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