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From Fellrnr.com, Running tips
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[[File:Mt Hinson Trail.jpg|right|thumb|500px|The trail that ascends 'Mount Hinson', which is a shallow if sandy climb the first time around, and then slowly gets steeper with each passing lap. (Copyright Frank Lilly, used with permission.)]]
At the 2013 in some lake Hinson Lake 24 hour ultra classic Hour I suffered from severe [[Nausea| nausea ]] and my race was terminated after 47 miles. However, this race gave me some interesting indications of what may be causing my nausea. Here's what happened… * Before the race, I was feeling strong and my [[Three Phase Taper]] had gone well, hitting 190 miles in my peak week.
* I slept well the night before the race, and had a ketogenic eggnog for breakfast. (8oz Heavy Cream and an egg, around 1,000 calories.)
* The race started well, and I ran the first 15 miles without pausing.
* Around mile 16 I started drinking a little, but with hindsight not enough. The weather was cool, and I did not realize quite how much I was sweating.
* My mouth was dry, but I did not have the normal sensation of thirst. I can't explain this (yet).
* Around mile 20 I started fueling with a mixture of coconut oil, Macadamia nut oil, and Nuttela. This mixture seemed to go down remarkably well and I had no digestive problems in the next little while. This formula is liquid, but contains very little water as it is nearly all oil, which may have been misleading as I was drinking, but not hydrating.
* Around mile 24 I did a [[Morton Stretch]] and noticed I had symptoms of low blood pressure. On standing up from the stretch I had to bend over to avoid browning out.
* Around 33 miles I started to find my [[Breathing|breathing ]] was becoming higher for the same pace. This is something I associate with hitting the wall, or the pre-adaptation stages of the [[Ketogenic Diet|ketogenic diet]]. I did a blood test that showed my ketones were at 0.8 and glucose was 108, both within my normal range for running.
* Around mile 30 I had a strange quad spasm. The pain went from miles through to a sharp electric pain and onto an un-ignorable pain that forced me to stop running all within the space of less than a minute. If someone had described to the sensation and location I might well have assumed it was [[Iliotibial band syndrome]], but the pain was actually from muscular problems in the lateral side of the quad. I stopped briefly to [[Massage]] it with my elbow and the pain went away, and never came back. In fact that bit of mid-race massage really helped the quad.
* Around mile 36 I started to suffer from nausea. I had a cluster of symptoms that I've had on other races; nausea, stomach pain, gas, lightheadedness, and a pervasive sense of weakness. This weakness is more like the feeling you have with a fever than from running long distances.
# I got slightly behind on my dictation, which caused my body to release a hormone that reduces kidney urine output. This hormone (vasopressin) can cause nausea, which further reduced my fluid intake, which in turn reduced my blood pressure. My symptoms were then caused by a combination of vasopressin and low blood pressure.
I will continue to research nausea and Vasopressin, but my main conclusion is that I need to ensure I'm drinking enough fluids to maintain my urine output.
[[Category:Race]]
