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March 21, 2005
Shed More Fat with Interval Exercise
Most people think that the longer they work out, the more weight they will lose. They plod on mile after sweaty mile, assuming that they are melting off unwanted fat with every step. In fact, these dedicated but misinformed exercisers are undermining their own efforts! Endurance exercise is not the best way to lose body fat. Long-term exercise calls on the body to store more fat!
Your body is always adapting to the demands put on it. When you burn fat during exercise, you are telling your body to maintain fat stores so that they will be available for the next exercise session. In essence, your body hoards your fat reserves to use as fuel for future workouts. Instead of decreasing fat, this type of endurance exercise triggers your body to make more fat whenever possible.
Endurance exercise actually encourages fat production. When you begin working out, your body burns ATP, the highest energy fuel in the body, but there is only enough ATP for one or two minutes of exercise. Next, your body switches to glycogen, a carbohydrate stored in muscle tissue. Your glycogen stores will take you through about 15 minutes of exercise. After that, your body taps into its fat reserves for fuel.
This fat-burning strategy may at first sound like an ideal approach to exercise for weight loss, but it isn’t. Since your body does all it can to adapt to demands, it builds back your fat the next time you eat to prepare you for the next time you exercise for a long time. It also sacrifices other tissues, such as muscle, to preserve fat whenever possible.
One of the primary reasons people choose the wrong form of exercise is that they presume that their body changes during an exercise session. It never does. All the important changes begin after you stop working out. They are consequences of your body adapting to prepare for the next time you ask your body to perform that same activity.
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Posted by james at March 21, 2005 4:10 AM