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  1. #1
    talentless cat 2 hack ilpirata87's Avatar
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    the downside to being a super fit cyclist

    Today I had a fairly unpleasant experience thanks in part to the physiological impact of cycling 20 hours a week on my body. I had a little stomach bug last night and was very dehydrated from vomiting and diarrhea. I felt a little better in the morning and was sitting in the living room reading the newspaper. I got all nauseated and decided (stupidly it turns out) to just step outside onto the porch and puke over the railing. Somehow I passed out in the process, fell backward onto the cement porch, and cracked my head. I ended up with a big gash and (I think) a concussion. Wow, fun. My blood pressure has always been low and since I've been cycling it has gotten even lower. Dehydration contributed to that as well, so I ended up out cold. Durham Regional Hospital is a crappy place to spend spring break.

    That certainly puts a damper on my weekend race plans, I'll probably be prudent and stay off the bike for 4 or 5 days. Who knows, maybe I will avoid overtraining and come back from the break even more beastly than usual...

    So does anyone else on this forum have problems with their blood pressure being too low?

  2. #2
    Writin' stuff ZeCanon's Avatar
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    Never passed out, but I get the light-headed darkness-is-closing-in feeling quite a bit when I stand up.
    Velo Magazine/VeloNews.com tech guy get in touch or hit me on the tweeter @CaleyFretz

  3. #3
    more ape than man timmhaan's Avatar
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    i'm not sure cycling is too blame, or did the doctor tell you that?

  4. #4
    talentless cat 2 hack ilpirata87's Avatar
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    yeah i don't think it's completely to blame but i think it did contribute a little bit. anyway it still bites

  5. #5
    Outgunned and outclassed
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    Haven't passed out from it in a few years. Happened three times when I used to be a runner and weighed 135 (I'm 6'3").

    These days I seem to get just as intense a head rush feeling, I just have avoided passing out.
    Patience - Consistency - Motivation

    I literally put our 9.11 watts/kg for 12 hours.

  6. #6
    Senior Member ericm979's Avatar
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    When I'm fit, I get light-headed if I stand up too fast too. I haven't passed out but sometimes I get dizzy and my vision goes black for a moment. When I was fat and unfit and had borderline high blood pressure it didn't happen. The evening after a long hard ride its the worst. Sit around, the blood pools in the legs. Then stand up too fast and boom, the world goes dark and starts spinning.

    Over the years I've learned to stand up a little slower and to be close to something solid in case I need to hang on for a moment. I asked my doctor and he said it's not a problem. It's not just low blood pressure that causes it- my wife's BP is even lower than mine and she doesn't get it.

  7. #7
    Senior Member jkizzle's Avatar
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    there are plus sides to being a slightly less fit cyclist - going down hills faster

  8. #8
    going roundy round wanders's Avatar
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    since there is no chance of me ever becoming a super fit cyclist (moderately fit is a long shot as well), I have nothing to worry about.

    speedy recovery.
    Quote Originally Posted by CastIron View Post
    Damn.

  9. #9
    Whateverthehell Chucklehead's Avatar
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    drink something.


    and eat a twinkie.
    "When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return." - Leonardo daVinci

  10. #10
    yak
    yak is offline
    Zircon Encrusted Tweezer yak's Avatar
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  11. #11
    abandoning fly:yes/land:no's Avatar
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    it really sucks riding roller coasters... black out.

  12. #12
    2wicky
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    that's why i stay out of shape by drinking lots of booze and eating trash.

  13. #13
    Senior Member garysol1's Avatar
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    I am one of those guys that everytime I stand up quickly I feel extremely light headed. I have never fainted but I have felt very close a few times.

  14. #14
    Senior Member ericm979's Avatar
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    Quote Originally Posted by yak View Post

    Blah blah diseased person stuff blah blah

    CASE EXAMPLE:

    A 57 year old man presented complaining of lightheadness on standing and a pressure sensation in the back of his neck (on standing). Other medical problems included a low thyroid. Blood pressure was 90/65 standing vs 130/80 supine (on medication). This documents a significant orthostatic hypotension. A sweat test showed about 50% anhidrosis. Norepinephrine level was about 30 units lower supine than upright. He was diagnosed as having neurogenic orthostatic hypotension. Present treatment includes Proamatine (mitodrine) 10 mg TID, salt supplements, and erythropoetin.
    Where do I sign up?

  15. #15
    Aut Vincere Aut Mori Snuffleupagus's Avatar
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    Jesus Q, that sucks. For sure take it easy for a few days, you won't be doing your fitness any favors by hopping back on the bike tomorrow. At all.

  16. #16
    Senior Member vladav's Avatar
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    I get light headed after taking one too many days off when following a long block of training. That seems to be too much a shock to the system. I have a sitdown computer job, so sometimes I'll wear those traveler's socks(compression stockings) which helps recovery + the lightheadedness...

    (I don't have any subscriptions at the superfit club though...)

  17. #17
    Aut Vincere Aut Mori Snuffleupagus's Avatar
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    Quote Originally Posted by vladav View Post
    I get light headed after taking one too many days off when following a long block of training. That seems to be too much a shock to the system. I have a sitdown computer job, so sometimes I'll wear those traveler's socks(compression stockings) which helps recovery + the lightheadedness...

    (I don't have any subscriptions at the superfit club though...)
    I've thought about using those, I've got some thigh high ones left over from knee surgery fun - how long are you wearing them for, for the purpose of cycling recovery? The post-op protocol was to wear them all the time for several days following the operation...but that's clearly a wholly different thing.

  18. #18
    Senior Member
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    jebus - 20hrs a week?? I have to jump through hoops to hit 13...what cat you racing?

  19. #19
    Senior Member TideCrazy3193's Avatar
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    I have recently lost around 30 pounds (now at 143) with cycling and i would say have progressed to somewhat fit. I also get the light headed feeling when i stand up fast.

  20. #20
    Senior Member
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    This is something that I have noticed as well. In the off-season I never have a problem, but once my training really gets going after about month two, I get really light-headed whenever I stand up too fast. I only noticed this once I started biking 3 years ago. I naturally High-Normal BP. I think it probably has something to do with the increased vascularity and blood tending to pool in the legs more because of increased fitness. I've done google searches, but have not come up with anything definitive, but I do seem to remember that fighter-pilots were not encouraged to become to fit, it pulls blood from the head which was necessary for High-G manuevers.
    "Of what worth are convictions that bring not suffering? "
    Antoine de Saint-Exupery

  21. #21
    ub3r n00b Youngin's Avatar
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    Well that's great. I'm a vegetarian and in the unhealthy low weight section right now, I drink, and eat a ton of stuff, but it happens to me all the time, especially when I don't get more than 9 hours of sleep, which is everyday with highschool.

  22. #22
    Senior Member TideCrazy3193's Avatar
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    Everyday with high school? Wait till college. You'll dream of the days where you get 6 hours of sleep.

  23. #23
    ub3r n00b Youngin's Avatar
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    Quote Originally Posted by TideCrazy3193 View Post
    Everyday with high school? Wait till college. You'll dream of the days where you get 6 hours of sleep.
    Quiet, I already do.

  24. #24
    Senior Member jkizzle's Avatar
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    hah, it all depends on your major though son, architecture, pretend you even get 4 hours of sleep. finanace, pretend you only get 14 hours sleep.

    that means, if you want to be good, i dont know. i drank alot of gin an tonic and bourbon tonight. thats what not to do in cycling.

  25. #25
    Senior Member vladav's Avatar
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    Quote Originally Posted by Snuffleupagus View Post
    how long are you wearing them for, for the purpose of cycling recovery?
    Well from 7:00ish AM to maybe 6:00ish PM. The whole time I'm sitting at as desk or driving. I only do it when I feel a lot of blood pooling in by legs at work or get the light headdedness.

    Dave

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