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[at-l] Hyponatremia - excessive water use in endurance athletes
Having run a marathon (and I know others on the list have too) the 'water
stations' are a regular feature of the race. They are set up to allow
runners to rehydrate without carrying a water bottle and at least the
Burlington, VT race offered an electrolyte alternative to the water. I'd be
hard put to say the availability of water did me nay harm. I would not have
finished had I had no water.
OTOH I can see where this is at least theoretically possible for an athlete
who is pushing him/herself too hard but I've never seen anything like that
among hikers. Well, I know one hiker who is somewhat crazy but he's crazy
all the time (no one on AT-L).
At 12:20 PM 4/14/2005 -0400, firstname.lastname@example.org wrote:
>I heard about this article this morning on one of the Boston radio
>stations. The spin they put on it dealt with Monday's Boston Marathon and
>all the paper cups you see along the Marathon route at the water stations
>(they have people holding cups of water out the runners can grab as they go
>by) may be doing more damage than good.
>I have not read the article but I suspect it deals with something other
>than the spin the radio people put on it.
>From: W F Thorneloe email@example.com
>Date: Thu, 14 Apr 2005 11:38:15 -0400
>Subject: [at-l] Hyponatremia - excessive water use in endurance athletes
>There is an article in the current New England Journal of Medicine,
>reported by AP, regarding electrolyte problems in athletes who drink
>excessive water. http://beta.news.yahoo.com/s/ap/fit_athletes_water is the
>current link to the article for those interested.
>I see patients who get water intoxication related to medications,
>neuroendocrine problems and behavioral problems. I have seen athletes get
>dehydrated, but can't recall seeing over-hydration. My trainer has noticed
>me getting excessive water during an hour's torture and cautioned me.
>Of interest is the idea that sports drinks may not be protective of
>electrolyte abnormalities. This gets back to that famous, regrettable,
>Gatorade flame war. I wonder if anyone here has seen water intoxication on
>the trail or even considered the possibility?
>Sorry if this psychiatrist's interest and knowledge of basic primary care
>medicine upsets anyone's sensibilities.
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