Is Marathon Running Good For You? Part 3

Posted: October 13, 2007 in marathon, marathon training

Tale tale signs on dehydration

This is the final part of part one and part two. We look at how you can tell the tell tale signs that you are dehydrated in a marathon race and waht you can do about it.

In part one you read too much water is dangerous and in part two you saw water is important to power your muscles and improve joint mobility during a marathon.

If you are not aware the runner who died at Chicago marathon died of dehydration. The organizers in Chicago were prepared for a hot race, though not one this hot — no one had expected the record temperatures, not even the top runners, who hadn’t made getting used to heat and humidity a part of their training.

Tell tale signs of danger 

There are two critical signs, reduced sweating and increased heart rate. The heart rate will rise because your heart is working harder to get your blood to the skin to cool off. If your body has ran out of water you will not experience sweating. Sweating helps your body to cool off.

Frank Shorter, the 1972 Olympic gold medalist and 1976 Olympic silver medalist in the marathon graphically describes how he once witnesssed a heat stroke,  

“AT the 16-mile mark of a very hot and humid marathon at the Pan American Games in Cali, Colombia, in 1971, I looked over at my good friend and teammate Kenny Moore and noticed something. “You’ve stopped sweating,” I said, trying to sound calm. Kenny looked at his dry forearms, and then his eyes got very big. Ten minutes later he was in an ambulance, incoherent with heat stroke.” In an article in New York Times, he describes how to avoid dehydration in a marathon.

Dean Kamazes an ultramarathon runner in his blog he has good advice on what to do if you encounter a hot marathon race.

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