Horrible Run

CarsonRuns

Fatigue can be a hydration issue but if you feel or know you've had enough water then that might not be it. Good luck.

Fatigue and (de)hydration are unrelated. The only physical response to dehydration is thirst.

I'm hesitant to disagree with you because I generally think you know your stuff... but my personal experience tells me different. I definitely notice a performance difference when I'm not drinking like I should.

I'm in the middle of reading "Waterlogged" by Tim Noakes which debunks the myth that hydration or dehydration is responsible for every performance gain or loss or other symptoms that are witnessed during distance events. He cites studies from the last 100+ years that all come to the same conclusion about how the body processes fluids, deals with the lack of fluids and how it tells us that we need to replace fluids. The "drink during exercise" culture that we live in has been propagated primarily by the big beverage companies to sell their sports drinks, starting in the 1970s with Gatorade.

It's a very interesting read. Here is an excerpt from the book that appeared in Running Times.

http://runningtimes.com/Article.aspx?ArticleID=26481

jacksonpt

Fatigue can be a hydration issue but if you feel or know you've had enough water then that might not be it. Good luck.

Fatigue and (de)hydration are unrelated. The only physical response to dehydration is thirst.

I'm hesitant to disagree with you because I generally think you know your stuff... but my personal experience tells me different. I definitely notice a performance difference when I'm not drinking like I should.

I'm in the middle of reading "Waterlogged" by Tim Noakes which debunks the myth that hydration or dehydration is responsible for every performance gain or loss or other symptoms that are witnessed during distance events. He cites studies from the last 100+ years that all come to the same conclusion about how the body processes fluids, deals with the lack of fluids and how it tells us that we need to replace fluids. The "drink during exercise" culture that we live in has been propagated primarily by the big beverage companies to sell their sports drinks, starting in the 1970s with Gatorade.

It's a very interesting read. Here is an excerpt from the book that appeared in Running Times.

http://runningtimes.com/Article.aspx?ArticleID=26481

Thanks. Maybe I'll check it out, always up for a few off-season reads.

I agree that the drink while exercising notion is largely propaganda, but I do think there is something for keeping hydrated in general.

jacksonpt

How long does a typical 5 mile run take you?

2 things...

1) bad runs happen. I wouldn't jump to any major conclusions based on 1 bad run. It's part of the game.

2) If you're not used to the heat and/or humidity, then definitely look at hydration. Getting hydrated before a run is much easier and will give you better results than trying to hydrate during a run. Drink more the day before, and make sure your electrolytes are good. I'm a big fan of 1 Nuun tablet daily during heavy training season just to keep things somewhat in check.

My running club was offering free Nuun tablets samples. I think I will give it a try. Thanks again for everyone's help and suggestions. As usual, the MFP "support group" always makes me feel better.

I typically run 10 minute/mile when I run over 3 miles. If I only have time for a 3 mile run, I do 9 minute/mile.

Then a 5 mile run should take you roughly an hour, in which case you shouldn't really need cals or fluids during the run assuming (and that's a big assumption for some people), that you are eating and hydrating properly between runs. Which brings me back to my first point - could have just been a bad day.

CarsonRuns

Fatigue can be a hydration issue but if you feel or know you've had enough water then that might not be it. Good luck.

Fatigue and (de)hydration are unrelated. The only physical response to dehydration is thirst.

I'm hesitant to disagree with you because I generally think you know your stuff... but my personal experience tells me different. I definitely notice a performance difference when I'm not drinking like I should.

I'm in the middle of reading "Waterlogged" by Tim Noakes which debunks the myth that hydration or dehydration is responsible for every performance gain or loss or other symptoms that are witnessed during distance events. He cites studies from the last 100+ years that all come to the same conclusion about how the body processes fluids, deals with the lack of fluids and how it tells us that we need to replace fluids. The "drink during exercise" culture that we live in has been propagated primarily by the big beverage companies to sell their sports drinks, starting in the 1970s with Gatorade.

It's a very interesting read. Here is an excerpt from the book that appeared in Running Times.

http://runningtimes.com/Article.aspx?ArticleID=26481

Thanks. Maybe I'll check it out, always up for a few off-season reads.

I agree that the drink while exercising notion is largely propaganda, but I do think there is something for keeping hydrated in general.

In general yes. I concur. But being dehydrated (to the point that someone in the civilized world would become dehydrated) won't impact performance. It's a good read. The excerpt itself is very informative. The book goes into great detail.