The Truth About Fat Burning and Weight Loss...
Anyone who has ever used a treadmill, bike, elliptical or other cardiovascular training machine has probably noticed the “Fat Burning” workout or “Fat Burning Zone” designated on the machine. For those of you who don’t know, the theory is that the lower end of your target heart rate training zone is the “fat burning zone,” if you train at these low levels you will burn more body fat and lose weight faster. Well I have good news and bad news about this assumption.
First the bad news – the “Fat Burning Zone” is myth, a timeless urban legend much like big-foot or the loch-ness monster. I know what you’re thinking, “if it’s not true why is it written on every cardio machine?” I had the opportunity to speak with James Peterson, Ph.D., FACSM, sports medicine consultant and former director of sports medicine for StairMaster Sports/Medical Products Inc. (now owned by Nautilus) and ask that very question. He answered with one word, “marketing”. Despite what the researchers know and advise, marketing gets the final word on selling equipment. After all, every equipment manufacturer is in business to sell machines and to do so they need to convince consumers that their product is the best and burns the most fat and calories. The concept of “fat burning” is a popular trend and therefore a must have for advertising purposes. The truth about the “fat burning zone” is not part of the equation.
Now, the truth - weight loss is all about burning enough calories to help us lose body fat. To lose a pound of body fat through exercise you need to burn approximately 3500 calories. A calorie is a calorie is a calorie: one calorie of fat is equal to one calorie of carbohydrate, which is equal to one calorie of protein. Think about it, which weighs more a pound of lead or a pound of feathers? A pound is a pound and a calorie is a calorie – both are units of measure. There is no magical “fat burning zone” because the energy units being utilized as you exercise are equivalent.
The good news - no more worries about having your heart rate “too high” to burn fat! If you are burning calories you are on the right track for weight and fat loss. Strive to burn as many calories as possible in whatever amount of time you have available to exercise. Choose an exercise intensity level that is challenging, but not exhausting, and work at that level for as long as you can. The other half of the equation is your calorie consumption. Reducing your calorie intake and increasing the amount of calories you burn will get you to your weight loss goals even faster.
