The sound track from GU is to take one 15 minutes before and every 45 minutes while running. Several of the marathon runners I train with do 15 minutes before, and every 5 miles. That accounts for burning calories more quickly when running faster. One buddy has even mentioned that he thinks he'll try every 4 miles in a race, while still doing every 5 miles in training.
The 4.5 miles wasn't a general principle thing; I was feeling the need. I discovered how feeling the need felt on a training run last October, when I forgot to take a gel until an hour and ten minutes. Miraculously, I recoverd quite well shortly after that gel. Now, I take them every 5 miles or sooner if I'm feeling the need. Seems to work for me.
YMMV. I suspect a mileage-based standard might need to be adjusted for runners traveling at different paces.
Thank for sharing those links about CR. So we meet again. As you can see, I'm having too much time on my hands (I have a super boring job) and am trying to find new goals to aim for, for when I've reached my weight loss goal.
Question for you: if you're practicing CRON, how much restriction do you do? And how has it affected your running? Do you 'eat back' all the calories you run (to the point of your CR)? Are you worried about bone density?
Thanks for contributing comments to my blog. Cost was a factor in my decisions. Those big races in Chicago do set a runner back. I temper it with cheaper local races. There are so many "firsts" this year, that since I have no destination races, I did bite the bullet on cost. This selection cost me just under $700, but with parking in Chitown, it will climb.
I will have to ponder your idea for blog topic. I like to read them more than write them, but sometimes I do get in the mood.