本文发表在 rolia.net 枫下论坛Here is the deal....
Short anaerobic bursts burn and use immediate energy sources. ie glucose and glycogen. When you use these sugars anaerobically you are not getting the most use of the ATP production. I won't go into the chemistry involved, but you know when you go hard for short distances you tire quicker and your muscles get weaker faster.
When you go slower, aerobic, the body use the stored energy sources as fuel. This does not happen overnight and will not happen in a few weeks. It takes the body along time to learn HOW to use fat as energy. When the body learns that it does not need to burn the glycogen stores, it will start to burn the stored fat and become a more efficient calorie machine.
Long distance runners count on this energy to carry them through the long runs. They cannot count on the 2000 calories of immediate use enrgey to carry them through, they train their bodies to burn the fat. Of course they have very little to burn, so they require a lot of different foods, but thats a different story.
Long, slow, aerobic runs will reduce the fat. Not overnight and not in a few weeks. Months.... and months.
Of course this is all mute if you eat bad in the interim. Any saturated fats and extra calories will immediately replace what you have burned and you will be back at square one.
I hope that helps.
Sheldon更多精彩文章及讨论,请光临枫下论坛 rolia.net