From basic tenets of training to nutrition guidelines,this is the first resource for runners to fully integrate nutrition with training for a complete and systematic pre-race plan. "A must for marathoners"(Library Journal). Every year, roughly 2 million people participate in marathons and half marathons in the United States, and, no matter what level they are, every one of these runners has likely hit "The Wall," running out of muscle fuel in the final miles and slowing down