Old 04-15-05, 03:43 PM
  #21  
terrymorse 
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Originally Posted by 'nother
I guess fanatical to me is someone who monitors their fluid intake so closely to know that they've consumed 12 oz every hour, as the person in the story that alanbikehouston posted . . . which sounds more like it was caused by overconsumption of water rather than insufficient salt replacement. I guess that sounds like the same thing, but if she had been drinking, say, 12 oz every 2 or 3 hours prior to the event, would it have been an issue? Or was her amount of water intake sufficient, just not enough salt?

Count me among Doctor Morbius' "confused" I guess . . . it's just so counter to my own experience, I cannot relate. Sorry to hear you were "bitten" . . .
The American College of Sports Medicine has a position paper on hydration:
  • 500 ml of fluid 2 hours prior to exercise
  • drink enough during exercise to replace fluid loss through sweat
  • add carbs & electrolytes for events longer than 1 hour

They don't give an upper limit to the amount of hydration per hour, but I've seen other papers that recommend no more than 1 liter per hour. That's a lot to drink, I max out at about 750 ml. per hour.

Getting "bitten" by hyponatremia was not fun. I didn't even want to look at my bike for 3 days afterwards.
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