Pre race prep for the rider?

[dank]

in the past couple of years i ran cross country in high school, and our coach couldnt stress enough the importance of a good warm up. people watching us would say that we were going to ware ourselves out before the race, but we never did, and we felt much better for it, so i was wondering if the same idea works for racing dirtbikes? u would stretch, sprint some, run for say 20 min. or something like that? im wondering what you do for race prep for yourself? because the way our coach explained it, what we were doing is telling our body what we were about to do to it, so that it would be prepared for it, and we felt much better throughout the race, as compared to the previous years with minimal warm up. so i guess im just wondering what you guys think of that idea.