(x-posted to rec.running) My "Diet and Excercise Assistant" Palm Pilot program calculates caloric expenditures from excercise. I just ran 55 minutes at 6 miles an hour (actually I went faster than that, but it got rounded down to 6 mph). Anyways, the program tells me that at 235 pounds, running for 55 minutes, at 6 miles per hour, I burned approximately 1100 calories!!!!??!!! That sounds like a pretty huge amount. Does this sound right to people? The treadmill readout listed about 600 calories burned, but it didn't ask me for my weight in arriving at this calculation. Opinions please.