Hello dailywalking and All,
I guess when talking 'water drinking' we should throw in some Noakes and the International Olympic Committee:
http://www.ncbi.nlm.nih.gov/pubmed/17454546
"The most recent (1996) drinking guidelines of the American College of Sports Medicine (ACSM) propose that athletes should drink "as much as tolerable" during exercise. Since some individuals can tolerate rates of free water ingestion that exceed their rates of free water loss during exercise, this advice has caused some to overdrink leading to water retention, weight gain and, in a few, death from exercise-associated hyponatraemic encephalopathy. The new drinking guidelines of the International Olympic Committee (IOC), recently re-published in this Journal, continue to argue that athletes must drink enough to replace all their weight lost during exercise and to ingest sodium chloride since sodium is "the electrolyte most critical to performance and health". In this rebuttal to that Consensus Document, I argue that these new guidelines, like their predecessors, lack an adequate, scientifically proven evidence base."
and ....
http://www.ncbi.nlm.nih.gov/pubmed/21098473
"In 1991, we provided definitive evidence that exercise-associated hyponatraemia (EAH) is caused by abnormal fluid retention in those who overdrink during prolonged exercise, but this finding was ignored. Instead, in 1996, influential guidelines of the American College of Sports Medicine (ACSM) promoted the concept that athletes should drink 'as much as tolerable' during exercise. What followed was an epidemic of cases of EAH and its associated encephalopathy (EAHE). A recent study funded by the sports drink industry confirms our 1991 finding by showing that 95% of the variance in the serum sodium concentration during exercise can be explained by changes in body mass alone. The possibility is that commercial influence delayed the acceptance of our findings for two decades."
Marathon studies of Hyponatremia:
http://www.ncbi.nlm.nih.gov/pubmed/19622524
http://www.ncbi.nlm.nih.gov/pubmed/15829535
http://www.ncbi.nlm.nih.gov/pubmed/18614886
International Olympic Committee Nutrition for Athletes - A practical guide to eating for health and performance - Reviewed and updated in April 2012
With a forward by Muhtar Kent, Chm. and CEO The Coca-Cola Company with a pitch for Powerade, "Helping you achieve peak performance is the mission of POWERADE, a refreshing beverage designed to prevent dehydration and the onset of fatigue during exercise." POWERADE Official Sports Drink ....
http://www.olympic.org/...en/en_report_833.pdf
Drinking recommendations are about 1/3 of the way through the guide.
.
Cheers, Neal
+1 mph Faster
I guess when talking 'water drinking' we should throw in some Noakes and the International Olympic Committee:
http://www.ncbi.nlm.nih.gov/pubmed/17454546
"The most recent (1996) drinking guidelines of the American College of Sports Medicine (ACSM) propose that athletes should drink "as much as tolerable" during exercise. Since some individuals can tolerate rates of free water ingestion that exceed their rates of free water loss during exercise, this advice has caused some to overdrink leading to water retention, weight gain and, in a few, death from exercise-associated hyponatraemic encephalopathy. The new drinking guidelines of the International Olympic Committee (IOC), recently re-published in this Journal, continue to argue that athletes must drink enough to replace all their weight lost during exercise and to ingest sodium chloride since sodium is "the electrolyte most critical to performance and health". In this rebuttal to that Consensus Document, I argue that these new guidelines, like their predecessors, lack an adequate, scientifically proven evidence base."
and ....
http://www.ncbi.nlm.nih.gov/pubmed/21098473
"In 1991, we provided definitive evidence that exercise-associated hyponatraemia (EAH) is caused by abnormal fluid retention in those who overdrink during prolonged exercise, but this finding was ignored. Instead, in 1996, influential guidelines of the American College of Sports Medicine (ACSM) promoted the concept that athletes should drink 'as much as tolerable' during exercise. What followed was an epidemic of cases of EAH and its associated encephalopathy (EAHE). A recent study funded by the sports drink industry confirms our 1991 finding by showing that 95% of the variance in the serum sodium concentration during exercise can be explained by changes in body mass alone. The possibility is that commercial influence delayed the acceptance of our findings for two decades."
Marathon studies of Hyponatremia:
http://www.ncbi.nlm.nih.gov/pubmed/19622524
http://www.ncbi.nlm.nih.gov/pubmed/15829535
http://www.ncbi.nlm.nih.gov/pubmed/18614886
International Olympic Committee Nutrition for Athletes - A practical guide to eating for health and performance - Reviewed and updated in April 2012
With a forward by Muhtar Kent, Chm. and CEO The Coca-Cola Company with a pitch for Powerade, "Helping you achieve peak performance is the mission of POWERADE, a refreshing beverage designed to prevent dehydration and the onset of fatigue during exercise." POWERADE Official Sports Drink ....
http://www.olympic.org/...en/en_report_833.pdf
Drinking recommendations are about 1/3 of the way through the guide.
.
Cheers, Neal
+1 mph Faster