Training Essentials for Ultrarunning
If you are too nauseated to continue, quite frankly you are inadequately trained for that stressor of an ultramarathon. Blisters, dead legs, muscle pain, and all the remaining items on the list are similar. They are all stressors in an ultramarathon, and they can all be trained. The key is that you have to know what the science says in these areas in order to know how to train them.
Training Essentials for Ultrarunning: How to Train Smarter, Race Faster, and Maximize Your Ultramarathon Performance
Jason Koop with Jim Rutberg
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