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Orthostatic Hypotenion - More Common for Cyclists?

Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway
View Poll Results: Ever get dizzy or black out?
Yes - Increases more with cycling
6
40.00%
Yes - No change in occurence with cycling
6
40.00%
Never! (Or very rarely)
3
20.00%
Voters: 15. You may not vote on this poll

Orthostatic Hypotenion - More Common for Cyclists?

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Old 07-16-08, 06:44 PM
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Youngin
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Orthostatic Hypotension - More Common for Cyclists?

Orthostatic Hypotension: A large decrease in blood pressure upon standing; may result in fainting.
(ukhealthcare.uky.edu/patient/glossary/glossary-o.htm)

Well, we've all had it happen to us, get up too quick and you get a little dizzy. However, during the cycling season, especially as I am noticing a change, it seems to happen a lot more frequently or severely. I was interested to see if anyone else shares this experience. It seems to me that it could be with the building up with more muscles in the legs, farther from the head. I'm interested in the poll and you with more experience to share your thoughts and stories.

Thanks!

Youngin

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Old 07-16-08, 06:45 PM
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Originally Posted by Youngin View Post
Orthostatic Hypotension: A large decrease in blood pressure upon standing; may result in fainting.
(ukhealthcare.uky.edu/patient/glossary/glossary-o.htm)

Well, we've all had it happen to us, get up too quick and you get a little dizzy. However, during the cycling season, especially as I am noticing a change, it seems to happen a lot more frequently or severely. I was interested to see if anyone else shares this experience. It seems to me that it could be with the building up with more muscles in the legs, farther from the head. I'm interested in the poll and you with more experience to share your thoughts and stories.

Thanks!

Youngin
1. See a doctor to make sure it's not something serious.

2. Hydrate yourself. Orthostatic hypotension is common with dehydration. It has nothing to do with the muscles in your legs.
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Old 07-16-08, 08:02 PM
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I never really paid attention to when it started happening to me, but I don't have any problems for a while and then for a day or two I can't hardly stand up without my vision going completely black and having to grab onto something to keep from falling over.

I always just assumed it was a normal thing
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Old 07-16-08, 09:38 PM
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It seems that since you mentioned it, I have had this happen more often since I have been training hard on my bike. It has always happened, but not as often as now that I am cycling more. I'm interested to see the results.
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Old 07-16-08, 09:41 PM
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It used to happen to me alot, I even passed out twice because of it. My father is a doctor and when he checked me out, it was because of dehydration for both instances. Hydrate, hydrate, and hydrate. (Coffee and tea don't count).
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Old 07-16-08, 09:43 PM
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Cycling should really have no effect on orthostatic symptoms. Your symptoms are probably from mild dehydration. I would push your fluid intake a little more both before, during and after rides. Maybe a little extra sodium / salt intake would help as well.

It would be reasonable though to see a Physician and have them check some orthostatic blood presures and maybe a few labs. I assume you aren't on any medications that could be contributing (BP meds, etc.). Alcohol intake would also contribute. By the way, I am an Internal Medicine Physician and your symptoms are common and probably just a nusiance.
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