Yes. I lift weights, do yoga, go for 45+ minutes runs when I IF. Even on the hardest workout days I don't feel performance affected, and it doesn't make me any hungrier any earlier. I realize this is different from an active job, where you're moving, lifting, etc for several hours, but there are some similarities.
I have found that I no longer get hungry AT ALL until around 11. Then it's very, very mild I have a cup of coffee or some water and it dissipates. I really do believe the body adapts to eating when we instruct it to.
Like puncezilla mentioned, perhaps start off your IF by opening your window at 11ish. A few days later at noon, a few days later at one. Your body will adjust and you'll get a sense of what works and what doesn't.
Last edited by indiblue; 09-28-2011 at 12:17 AM.