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Old 03-19-10, 02:21 PM   #1
mike047
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Blood Pressure

I missed my turn today and was forced go a longer ride that was [to me] substantially harder than what I wanted this early in the year.

It was real tough and by the time I got home I was whipped...bad.

I checked my BP and pulse[ automatic wrist kind...matches the Dr. readings].
80/50 with a 95 pulse.

Pulse is about what I usually come in with. Resting in the AM is usually low 50's.
My BP runs 120/110-80/70 normally.
I am 62.

Anyone experienced this happening?

I drank a cold Sierra Mist and laid prone for a short period of time and it came up to 100/70.

Last edited by mike047; 03-19-10 at 02:22 PM. Reason: spellin
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Old 03-19-10, 02:48 PM   #2
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Not as low as 80/50, but I've seen that phenomenon after a long ride: pulse elevated and BP low. I spoke to my physician about this several years ago and he thought it was probably dehydration. But don't go by me -- I suggest you bring it up at your next physical, just in case.
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Old 03-19-10, 02:53 PM   #3
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It is an established fact that BP always drops sharply immediately after endurance exercise, then slowly climbs back to normal.
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Old 03-19-10, 03:09 PM   #4
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As long as you don't pass out when you stand up, 'too low' isn't usually a significant issue.
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Old 03-19-10, 03:28 PM   #5
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It's more than 5 hours ago since I finished my ride today. Now I have to try measuring BP after each ride again to satisfy my curiousity.
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Old 03-19-10, 04:53 PM   #6
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Not as low as 80/50, but I've seen that phenomenon after a long ride: pulse elevated and BP low. I spoke to my physician about this several years ago and he thought it was probably dehydration. But don't go by me -- I suggest you bring it up at your next physical, just in case.
Dehydration was my first thought. I road about 4 hours and discovered when I got back that I had not even drank a full bottle. I had a partial gastrectomy[sp?] in 2008 and my stomach sometimes cramps or I feel sick if I drink a lot of water. Maybe I should try some gatorade or something similar.
The cold soft drinks don't bother my stomach, though.........?

I have been severely dehydrated before and I don't feel like that.

As my luck would have it, I had a physical yesterday at the VA. Haven't gotten the blood work back yet but the doc said I looked OK.

BP; 111/66 pulse 77 three hours after ride. I feel OK just sore.
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Old 03-19-10, 05:29 PM   #7
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As it was explained to me, the exercise sort of stretches out your blood vessels - causing a lower BP. I don't know is this is correct or not, but I and others frequently experience this phenomenon. Unless extremely low, this is not usually a medical problem.
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Old 03-19-10, 05:59 PM   #8
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When my BP has dropped like that in the past - a big glass of OJ brings it right back up.
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Old 03-19-10, 06:26 PM   #9
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There is considerable value, especially in us older people, to pay attention to variations from normal, whatever that may be. The personal normal may be a bit different for each of us and may be at variance from what the medical community publishes as normal. But, whatever that personal normal is should be a baseline and deviations from that baseline need to be analyzed and understood. That should be done in a conversation with your provider. Only that person can look at other signs and symptoms and help you decide the significance of this event.

The mere fact you posted about this tells me you are concerned enough to make the appointment and have the discussion.
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Old 03-19-10, 07:56 PM   #10
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I got it down to 77 over 59 once after riding home for work. It made my day, and is still my personal best. This week, I'm bummed out because 106 is as low as I've gotten.

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Old 03-19-10, 08:25 PM   #11
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I noticed it too. After a long ride my BP is quite a bit lower but it returns to normal the next day. I mentioned this to my doctor, I told her I would have excellent BP if I quit my desk job and just rode my bike 30 miles every day.
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Old 03-20-10, 03:16 AM   #12
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110/66 68 pulse
Almost back to normal and I feel fine.

Quote:
The mere fact you posted about this tells me you are concerned enough to make the appointment and have the discussion.
I really wasn't "concerned" but more curious as to others noticing this.
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Old 03-20-10, 10:48 AM   #13
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I've seen 74/48 after a ride. I feel a bit light-headed then. I'm sure it's not dehydration. The sawbones I see annually or so isn't concerned about it, so I don't worry about it either. I think it is that low mainly because I take meds to control it. It gets too high if I don't.
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Old 03-20-10, 04:56 PM   #14
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I've notice a major drop in both BP numbers like that a few times. It's when I really put in a hard effort. I think it's just extreme fatigue, but I've never done a google search. I know I wasn't dehydrated. Matter of fact, just a slight dehydration will thicken the blood. I would think thicker blood would cause a higher BP. Doctors are not a reliable source of information when it comes to exercise or nutrition.

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Old 03-20-10, 08:46 PM   #15
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Dehydration can result in lower blood volume which would be more commonly associated with lower blood pressure.
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Old 03-20-10, 09:22 PM   #16
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Quote:
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110/66 68 pulse
Almost back to normal and I feel fine.



I really wasn't "concerned" but more curious as to others noticing this.
Thanks for clarifying.
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Old 03-21-10, 07:06 AM   #17
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Dehydration can result in lower blood volume which would be more commonly associated with lower blood pressure.
Looks like you are correct:

http://www.medicinenet.com/dehydration/page2.htm

Also, it appears that the HR is high as well. When I had my low BP events, my HR was low, down near where it is normally at rest.


Al

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Old 03-21-10, 09:56 AM   #18
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Quote:
Originally Posted by alcanoe View Post
Looks like you are correct:

http://www.medicinenet.com/dehydration/page2.htm

Also, it appears that the HR is high as well. When I had my low BP events, my HR was low, down near where it is normally at rest.


Al
GOOD link, thanks
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Old 03-22-10, 08:00 PM   #19
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I weigh myself before a ride, take water before the ride, 24 to 48 oz during the ride, weigh again when returning and sip water after. I did not do this last year and was getting cramps and dehydration. I have found also that mixing my own chocolate milk after a ride in high heat will help restore and recover for the next day. I also freeze some cranberry juice in a 12 oz plastic bottle(bottom part only) and fill it before a ride, it stays nice and cold and slushy when i need it the most. My bp was about 90 over 68 after some rides and i was feeling a little light headed. Using the above with rest stops have helped keep me more normal.
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Old 03-22-10, 08:14 PM   #20
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I'm not a doctor, but I've done a little reading about blood pressure, and I thought this article was of interest.

I don't know if this would be a factor in your situation, but I always like to have a banana before a long ride because they typically contain a good amount of potassium (plus sugar for energy).
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Old 03-23-10, 04:56 AM   #21
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Before riding or other outdoor activity , I drink a couple of large glasses of water . Then drink during the ride. You don't want your BP to get too low !!!
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Old 03-23-10, 07:04 AM   #22
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Zippy, Are we having fun, yet?
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Old 03-23-10, 04:46 PM   #23
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Zippy, Are we having fun, yet?
I was an avid reader of National Lampoon during the early 1980's, but it seems that very few people have actually seen the comics from which I took my BF handle.
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Old 03-23-10, 05:45 PM   #24
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Bill Griffith was an underground comix artist who really went mainstream with a daily newspaper strip for Zippy.
Only in San Francisco! Believe that's where the newspaper strip started.
Zippy is my role model.

Zippy recommends bananas as a good source of dietary fiber, too.
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Old 03-23-10, 06:21 PM   #25
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Zippy recommends bananas as a good source of dietary fiber, too.
Especially if one eats the peel.
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