Ha, if I were to run half a mile I would be sore tomorrow! But I could drop 50 miles on a bike and not be sore at all, just tired. It's all a matter of what your muscles are used to.

I'm surprised I haven't seen anybody on this thread talk about embro. Isn't muscle soreness (or prevention) what it's for? Never tried it myself. Whenever I get sore muscles I like to either self-massage with the heel of my palm, or roll them out with a roller like this.