[SmileyEH]

The thing is this stuff is incredibly difficult to quantify and analyze with any sort of resolution. Realise that 100 calories is a little more than a single egg or a glass of orange juice. Actually tracking caloric input/output at that sort of resolution is practically impossible.

What I can tell you is that high intensity exercise (sprinting, lifting weights, most sports) will all do very good things for your body. Watch what you eat, if you want to maintain weight eat when you are hungry, if you want to gain eat when you're not, and if you want to lose dont eat when you want to. Thats pretty much it.