If I do the trainer at my house in the morning, I do it as soon as I get up, without breakfast. I can work out for about 45 minutes and then I'll eat as soon as I get off of the bike. If for some reason I'm starving as soon as I get up I'll eat something light like half a banana, or I might add a few calories to my water (maybe half a scoop of Hammer Heed or something like that) and it helps. I find I can work out without eating, as long as its not super long.

If I'm doing a spinning class (takes a little longer to get stuff together, get out of the house, and travel to the class), or I'm doing a long bike ride, I'll eat my normal breakfast because its about an hour after getting up and I'm starving by then. I'll then have a little something (chocolate milk, banana, etc.) after the class or I'll eat more during a long bike ride.