General Discussion Triathlon Talk » Improved hydration using warm fluids for an ultradistance event Rss Feed  
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2015-07-02 3:48 PM

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Subject: Improved hydration using warm fluids for an ultradistance event
I received a reply to a query I sent out about an event and part of the response was this:

" At one point it was recommended to our volunteers at aid stations from our Medical team to stop icing down the fluids as it was harder for the body to re-hydrate with cold drinks. The body uses extra energy to warm up the fluids to body temperature before re-hydrating."

Is this true?? Do events such as Kona or IM Arizona - events held in hot weather - provide warm drinks in the middle of a blisteringly hot day on purpose?


2015-07-02 4:02 PM
in reply to: Phaethon

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Subject: RE: Improved hydration using warm fluids for an ultradistance event

Everything I've read suggests that cold water absorbs into the body, and counters dehydration faster, but I'm no doctor.

2015-07-02 4:04 PM
in reply to: trijamie

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Subject: RE: Improved hydration using warm fluids for an ultradistance event

It is very difficult to drink ice cold water when you are super hot.  cool water is much easier to drink

2015-07-02 4:42 PM
in reply to: #5126380


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Subject: RE: Improved hydration using warm fluids for an ultradistance event
With absolutely no research into the question, intuitively, I would think that the body is working pretty hard to keep the core temperature down, and cool liquids would only help and decrease the stress on the body.
2015-07-03 10:53 AM
in reply to: ImSore

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Subject: RE: Improved hydration using warm fluids for an ultradistance event

In the Army they trained us to drink/give body temperature water to someone that was severely dehydrated.  It was explained that the  body needs to exert energy to bring everything back into homeostasis.  The body needs to bring cold water up to 98.6 and bring hot water down to 98.6.  Take this with a grain of salt considering the source.  It may be hard to believe but not everything I was told in the Army was the truth.

2015-07-03 4:06 PM
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Subject: RE: Improved hydration using warm fluids for an ultradistance event

Never heard of this before.  A quick search showed some general items:

1) The cooler the beverage the more individuals are willing to consume it, with an optimum temp between 50 and 60F (camelback I think this one was stated) and other saying 4C was even better than 19C (http://www.ncbi.nlm.nih.gov/pubmed/16777932)

2) The cooler the beverage the more it assisted with core temp control

3) Room temp beverage (23C) was absorbed quicker than very warm fluids (37C), this was in regards to infants.

I personally don't like too cold of a fluid when I'm hot as I get cold headaches easily, but warm fluid I don't like either. 

 



Edited by Donto 2015-07-03 4:06 PM


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Knowing where the fluids are, how they will fit on your bike, how much to reach for, and when to reach for it should be understood prior to ever setting foot on the course.