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Recent News and Articles on the Keywords: sodium loss + athletes + sodium  Related to the article below (Last Update: 5/5/2008)


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Another name for this condition is "hyponatremia", meaning that the sodium content of the blood is too low because it has been diluted by excess water, ...
Source: Google News

Sodium-free fluid ingestion decreases plasma sodium during exercise in the heat -
DMJ Vrijens, NJ Rehrer - Journal of Applied Physiology, 1999 - Am Physiological Soc
... Ten male endurance athletes participated in one 1-h ... In the experimental trials, fluid
loss was replaced by distilled water (W) or a sodium-containing (18 ...

Hyponatremia in distance runners: Fluid and sodium balance during exercise -
T Noakes - Current Sports Medicine Reports, 2002 - Springer
... they calculated that athletes who completely replaced their 8.6 L of total sweat
loss with pure water dur- ing the 90-km race would develop sodium deficits of ...

Response to a fluid load in athletes with a history of exercise induced hyponatremia. -
DB SPEEDY, TD NOAKES, TOM BOSWELL, JMD THOMPSON, N … - Medicine & Science in Sports & Exercise, 2001 - acsm-msse.org
... Irving et al. (11) reported a median sodium loss of 153 mmol in hyponatre- mic athletes;
Speedy et al. (31) reported median sodium losses of 88 mmol. ...

Water Intoxication: A Possible Complication During Endurance Exercise -
TD Noakes, N Goodwin, BL Rayner, T Branken, RKN … - Wilderness and Environmental Medicine, 2005 - bioone.org
... among marathon runners20,21 and other endurance athletes. ... study has shown that total
sweat loss during the ... and measured post-race serum sodium levels were the ...

Weight Changes, Sodium Levels, and Performance in the South African Ironman Triathlon. -
K Sharwood, M Collins, J Goedecke, G Wilson, T … - Clinical Journal of Sport Medicine, 2002 - cjsportsmed.com
... marathon finishing times of the tri- athletes in groups ... between the levels of weight
loss developed during ... between the postrace serum sodium concen- trations ...

Hyponatremia of exercise -
B Murray, ER Eichner - Current Sports Medicine Reports, 2004 - Springer
... Educating athletes about the dangers of excessive drinking and the need to ingest
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[CITATION] Hyponatremia during endurance running: a physiological and clinical interpretation. -
TD NOAKES - Medicine & Science in Sports & Exercise, 1992
... ECF volume calculated as (13 - calculated ECF loss) liters ... to the volume of distribution
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Hyponatremia Associated With Exercise: Risk Factors and Pathogenesis. -
SJ Montain, MN Sawka, CB Wenger - Exercise and Sport Sciences Reviews, 2001 - acsm-essr.com
... Competitive and recreational athletes as well as occupational ... 3-4 h, snacks or fluids
containing sodium chloride should be ingested to offset the loss of salt ...

Sodium intake and post-exercise rehydration in man -
RJ Maughan, JB Leiper - European Journal of Applied Physiology, 1995 - Springer
... The delayed rehydra- tion in the water trial appeared to be a result of a loss of
sodium, accompanied by water, in the urine caused by reduced plasma renin ...

Effects of different sodium concentrations in replacement fluids during prolonged exercise in women. -
R Twerenbold, B Knechtle, TH Kakebeeke, P Eser, G … - British Journal of Sports Medicine, 2003 - pt.wkhealth.com
... suggests that there are massive unreplaced sodium losses in ... 2, 3, 7 and prevents
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Source: Google Scholar

Sodium loss a concern for athletes

Last Updated: 2007-07-31 12:34:54 -0400 (Reuters Health)

By Amy Norton

NEW YORK (Reuters Health) - Most athletes probably know they need to drink fluids while working out, especially in the dog days of summer. But the importance of getting enough sodium is much less recognized, according to one expert.

Excessive sweating causes the body to lose not only water, but sodium as well. This matters because sodium is an important part of the rehydration process, helping the body retain water and restore the balance of fluids in the spaces around body cells.

Some athletes, particularly those who practice on consecutive days in the heat and humidity, may need to pay closer attention to their salt intake, according to Dr. Verle Valentine of Sanford Sports Medicine in Sioux Falls, South Dakota.

Writing in the journal Current Sports Medicine Reports, he lays out some advice for athletes working hard in the heat.

One way for athletes to estimate how much sodium they are losing through sweat is to weigh themselves before and after a workout, according to Valentine. Someone who loses 5 pounds or more, he told Reuters Health, may be shedding more sodium than can be replaced from a normal diet.

For these athletes, a little extra salt in the diet -- from salty snacks like pretzels and canned soups, or a couple shakes of the salt shaker -- may be a good thing. Rehydrating with a sports drink rather than plain water may also be a good idea, Valentine pointed out, since sports drinks contain sodium and other electrolytes.

For weekend warriors and other occasional exercisers, a lack of sodium is unlikely to be a concern, according to Valentine.

"In most cases the regular exerciser is getting adequate salt intake from a regular diet," he said.

What's more, too much sodium can be harmful, Valentine added, especially for people who already have high blood pressure or heart problems.

Still, he said, some everyday exercisers -- particularly those who exercise daily in the heat and humidity -- might consider weighing themselves to see how much fluid they lose from a typical workout.

"If this person loses more than 5 pounds during an exercise session," Valentine said, "then it may be a sign that they are losing more sodium than (is being replaced in) their normal dietary intake."

SOURCE: Current Sports Medicine Reports, August 2007.

Copyright © 2007 Reuters Limited. All rights reserved. Republication or redistribution of Reuters content, including by framing or similar means, is expressly prohibited without the prior written consent of Reuters. Reuters shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon. Reuters and the Reuters sphere logo are registered trademarks and trademarks of the Reuters group of companies around the world.

 
 
 
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