canalrunner wrote:I am one of the ones who minimizes gels etc... in training, using them in runs over 2 hours. During a marathon however, I have one every 8 k. A good part of this is mental.
For me there's nothing mental about it. I have recently found that if I don't use anything for runs over 75 minutes, my recovery is much slower and I'm tired for the rest of the day. I have not found this at all when I use gels during training.
I have this sense that runners tend to carry too much water and gels but have been convinced to do so, mostly by the marketing rather than the science. For the most part in training, runners are not climbing Mount Everest, even though they have the supplies to do so.
I do what works for me-- not because of marketing or hype (I used to think that too). It may not work for everyone. I don't think I'd make it up Mount Everest on one bottle diluted of gatorade and two gels, either (what I take for a 2-hour run).
As for the science-- supposedly you can be tested to find out how much you need as far as gels/energy during runs/races. Usually the scientists tell people they need a lot more than they actually are using or are led to believe by other runners. I don't want to pay someone to tell me what I need, but I have seemed to have figured it out by trial and error.