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A humbling ride

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Road Cycling
Published
8 March 2004
Last activity
9 March 2004
Original author
David Kerber
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  1. Yesterday was a bit cooler than it had been for the previous
    week or so: mid-30's (F) in the morning, expected to go up
    into the mid-40's by afternoon. The Narragansett Bay
    Wheelmen had a ride scheduled in one of the more scenic
    areas of the state, and I went to ride the longer route. It
    was 34 miles over pretty flat ground, with only a couple of
    short relatively steep hills to worry about. I was in kind
    of a hurry on the way out of the house, so I didn't bother
    to mix up the Gatorade which I usually put in my water
    bottle, opting instead to go with plain water. I also
    grabbed a handfull of peanut butter crackers, which are my
    normal road food.

    I showed up with my Fuji Touring still in its full winter
    coat, probably outweighing every bike there except for the
    tandems, and there were a lot. I didn't count, but there
    must have been at least 50 riders, including 3 or 4 tandems
    and at least one recumbent.

    I was in the mood for a good workout, so I headed out with
    the lead group, which consisted mostly of 20-somethings in
    full kit from an area bike shop. I expected that I wouldn't
    be able to stick with them for the entire ride, and sure
    enough, at about the 5 or 6 mile point, they took off and
    dropped me like a hot rock. There were a few others around
    my age in the same situation, so about 6 of us kind of stuck
    together for a while. Then it tapered down to me and another
    guy 10 years older on a Trek 5200, and we made it to the turn-
    around at a decent pace. At the turnaround, because of what
    the wind was doing, I decided to put on my fleece jacket (I
    had been going with just my l/s jersey with a T- shirt under
    it up to this point). Once we turned around, I discovered
    that I didn't have the energy to stick with the same group
    again. That should have been a warning, but I was paying too
    much attention to trying to keep up, and not enough to what
    my body was trying to tell me.

    I rode along solo for a while, breathing fairly hard. After
    a while of that, I noticed I was seriously depleted of
    energy, and I realized that I hadn't eaten anything, nor had
    I drunk any water beyond a few sips. So I pulled over at a
    stop sign out of the wind and tried to eat a couple of the
    peanut butter crackers. My mouth was so dry that I couldn't
    swallow the crackers without actually washing them down with
    water. That was when I realized I was probably dehydrated,
    as well as bonking on low blood sugar. I made myself finish
    the package, and drank several ounces of water, and then
    pushed on at an easy pace. Within about 15 or 20 minutes, I
    started to get some energy back, and I was able to pick up
    the pace a bit.

    I got passed a couple more times, one time sticking with
    him for a couple of miles before losing it up a hill, but
    made it in ok at the end, having clocked 33 miles in about
    2:10. My computer showed a moving average of about 15.2
    mph, significantly slower than my normal solo rides. A
    couple of things occurred which hadn't happened before: at
    one point I got a cramp in my left calf, though it went
    away quickly and never recurred. And my sit bones got very
    painful about the 25 mile point, and stayed that way for a
    while, though after a while that cleared up as well, after
    I spent some extra time out of the saddle. It felt a little
    like a cramp, but not exactly like one, and they are still
    sore today. I am tentatively putting both of those effects
    down to fatigue and dehydration, though I may be looking
    into a new saddle as well.

    I have a couple of excuses: 1) I was still recovering from a
    slibht cold which had given me a scratchy throat and cough
    for a few days. 2) Probably most important, I had donated
    blood five days previously, giving 2 units of packed red
    cells. If any of you are a doctor, could that cause a
    significant reduction in my endurance level? 3) Allowing my
    self to become dehydrated and low on carbs. Next time, I
    won't leave on one of these rides without my
    Gatorade/Powerade/whatever.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

  2. David Kerber <ns_dkerber@ns_ids.net> wrote in message
    [email hidden]

    [...]

    Quoted message said:

    I have a couple of excuses: 1) I was still recovering from
    a slibht cold which had given me a scratchy throat and
    cough for a few days.

    I try to avoid pushing myself too hard if I am or have just
    been ill. You can make yourself worse.

    Quoted message said:

    2) Probably most important, I had donated blood five days
    previously, giving 2 units of packed red cells. If any
    of you are a doctor, could that cause a significant
    reduction in my endurance level?

    Whilst your body would have recovered its fluid level within
    70 hours of giving blood (assuming proper hydration), it
    takes up to eight weeks for your blood to fully recover its
    iron levels.

    --

    "I'm proud that I live in a country where witnessing two
    hours of bloody, barbarous torture in gloating detail is
    considered indicia of religious piety, whereas a mere second
    gazing upon a woman's breast is cause for outraged
    apoplexy." Betty Bowers,
    bettybowers.commelgibsonpassion.html

  3. In article <[email hidden]>,
    [email hidden] says...

    Quoted message said:

    David Kerber <ns_dkerber@ns_ids.net> wrote in message
    [email hidden]

    [...]

    Quoted message said:

    I have a couple of excuses: 1) I was still recovering
    from a slibht cold which had given me a scratchy throat
    and cough for a few days.

    I try to avoid pushing myself too hard if I am or have
    just been ill. You can make yourself worse.

    Quoted message said:

    2) Probably most important, I had donated blood five
    days previously, giving 2 units of packed red cells.
    If any of you are a doctor, could that cause a
    significant reduction in my endurance level?

    Whilst your body would have recovered its fluid level
    within 70 hours of giving blood (assuming proper
    hydration), it takes up to eight weeks for your blood to
    fully recover its iron levels.

    According to the nurse who runs the pheresis machine, with a
    packed red cell donation, they actually return slightly more
    fluid back to you than they take, because of the saline used
    to prime the machine.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

  4. David Kerber <ns_dkerber@ns_ids.net> wrote in message
    [email hidden]

    Quoted message said:

    In article <[email hidden]>,
    [email hidden] says...

    Quoted message said:

    David Kerber <ns_dkerber@ns_ids.net> wrote in message
    [email hidden]

    [...]

    Quoted message said:
    Quoted message said:
    Quoted message said:

    2) Probably most important, I had donated blood five
    days previously, giving 2 units of packed red cells.
    If any of you are a doctor, could that cause a
    significant reduction in my endurance level?

    Whilst your body would have recovered its fluid level
    within 70 hours of giving blood (assuming proper
    hydration), it takes up to eight weeks for your blood to
    fully recover its iron levels.

    According to the nurse who runs the pheresis machine, with
    a packed red cell donation, they actually return slightly
    more fluid back to you than they take, because of the
    saline used to prime the machine.

    But that doesn't replenish your iron. You need iron to carry
    oxygen. In effect, after giving blood you are slightly
    anemic for up to eight weeks.

    --

    "I'm proud that I live in a country where witnessing two
    hours of bloody, barbarous torture in gloating detail is
    considered indicia of religious piety, whereas a mere second
    gazing upon a woman's breast is cause for outraged
    apoplexy." Betty Bowers,
    bettybowers.commelgibsonpassion.html

  5. In article <[email hidden]>,
    [email hidden] says...

    ...

    Quoted message said:
    Quoted message said:
    Quoted message said:

    > 2) Probably most important, I had donated blood five
    > days previously, giving 2 units of packed red
    > cells. If any of you are a doctor, could that cause
    > a significant reduction in my endurance level?

    Whilst your body would have recovered its fluid level
    within 70 hours of giving blood (assuming proper
    hydration), it takes up to eight weeks for your blood
    to fully recover its iron levels.

    According to the nurse who runs the pheresis machine,
    with a packed red cell donation, they actually return
    slightly more fluid back to you than they take, because
    of the saline used to prime the machine.

    But that doesn't replenish your iron. You need iron to
    carry oxygen. In effect, after giving blood you are
    slightly anemic for up to eight weeks.

    Yes, I realize that; I was just commenting on the fluid
    level, not the iron level. They said my iron was a bit high
    before I donated (46, iirc), but have no idea what that
    means, or where it would leave me after donating. But it
    makes a good excuse for not being able to keep up the pace
    for long <GGG>.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

  6. "David Kerber" <ns_dkerber@ns_ids.net> wrote

    Quoted message said:

    I got passed a couple more times, one time sticking with
    him for a couple of miles before losing it up a hill, but
    made it in ok at the end, having clocked 33 miles in about
    2:10. My computer showed a moving average of about 15.2
    mph, significantly slower than my normal solo rides.

    Quoted message said:

    I have a couple of excuses: 1) I was still recovering from
    a slibht cold which had given me a scratchy throat and
    cough for a few days. 2) Probably most important, I had
    donated blood five days previously, giving 2 units of
    packed red cells. If any of you are a doctor, could that
    cause a significant reduction in my endurance level? 3)
    Allowing my self to become dehydrated and low on carbs.
    Next time, I won't leave on one of these rides without my
    Gatorade/Powerade/whatever.

    It's not likely that you bonked or became significantly
    dehydrated at that pace and duration, I'd say it was just
    fatigue. If you go out too hard, you eventually "blow",
    getting fatigued to where you need recovery. Those
    recoveries are usually shorter and much less dramatic
    than bonking and/or significant dehydration. If your sit
    bone area is sore after such a short ride, you've either
    got a fit/saddle issue or just haven't put in the miles
    yet. In any case, I wouldn't put too much faith in
    special sugar water.

  7. "David Kerber" <ns_dkerber@ns_ids.net> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Probably most important, I had donated blood five days
    previously, giving 2 units of packed red cells. If any of
    you are a doctor, could

    THANK YOU

    Yes the would definately inpact your ability to carry
    Oxygen. You make a complete change of RBC's every 120
    days. So it shouldnt take you too long to restock what you
    gave away.

    I took six units of Packed RBC's last summer.
    Undoubtedly saved my life. If it we not for people like
    you, I would have bleed out. Yes I am rounding up all my
    friends and we are going to turn out to the local blood
    drive. Thanx again, CK

    P.S. Good luck on the bonking issue

  8. In article
    <[email hidden]>, pm200054
    @optonline.net says...

    Quoted message said:


    "David Kerber" <ns_dkerber@ns_ids.net> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Probably most important, I had donated blood five days
    previously, giving 2 units of packed red cells. If any
    of you are a doctor, could

    THANK YOU

    Yes the would definately inpact your ability to carry
    Oxygen. You make a complete change of RBC's every 120
    days. So it shouldnt take you too long to restock what you
    gave away.

    I took six units of Packed RBC's last summer. Undoubtedly
    saved my life. If it we not for people like you, I would
    have bleed out.

    That's why I do it, and hearing from people like you just
    reinforces it. That donation got me up to the 4 gallon point
    since moving to RI.

    Quoted message said:

    Yes I am rounding up all my friends and we are going to
    turn out to the local blood drive. Thanx again, CK

    P.S. Good luck on the bonking issue

    I think if I hadn't been so concerned about keeping up with
    the pack early on, I would have been more conscious of
    eating and drinking along the way, and probably would have
    finished in an overall better time.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

  9. tk said:
    Quoted message said:

    Probably most important, I had donated blood five days
    previously, giving 2 units of packed red cells.

    Quoted message said:

    THANK YOU


    First, I'll echo that.

    Quoted message said:

    Yes the would definately inpact your ability to carry
    Oxygen.

    There's a little trade-off here. Allow me to wear my
    physiology geek hat for a moment. Hemoglobin is contained in
    the blood cells you gave up, and as was pointed out you'll
    need some time to generate more RBCs.

    However, as the hematocrit (ratio of cells to total volume
    of blood) approaches 30% (i.e. your blood is roughly one
    part cells and two parts liquid) the blood flows more
    readily through the capillaries to the tissues where it's
    used. The best combination of the ability to carry oxygen
    and the ability to flow through small blood vessels does in
    fact occur at a hematocrit of 30. Your heart has to pump
    more blood around at the lower hematocrit to deliver a given
    amount of oxygen. But the resistance to flow of the less
    viscous (lower hematocrit) blood is less.

    If you're training regularly, your body will find the
    optimum hematocrit for you. Until that happens, you'll carry
    less oxygen per volume of blood pumped. That will decrease
    your work output and increase your perceived effort at a
    given level of perceived exertion.

    That's why you were tired. It'll get better.

  10. In article <[email hidden]>,
    [email hidden] says...

    ...

    Quoted message said:

    in fact occur at a hematocrit of 30. Your heart has to
    pump more blood around at the lower hematocrit to deliver
    a given amount of oxygen. But the resistance to flow of
    the less viscous (lower hematocrit) blood is less.

    If you're training regularly, your body will find the
    optimum hematocrit for you. Until that happens, you'll
    carry less oxygen per volume of blood pumped. That will
    decrease your work output and increase your perceived
    effort at a given level of perceived exertion.

    That's why you were tired. It'll get better.

    I figured it was something like that, but thanks for the
    explanation.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

  11. DRS said:

    David Kerber <ns_dkerber@ns_ids.net> wrote in message
    [email hidden]

    Quoted message said:
    Quoted message said:

    Whilst your body would have recovered its fluid level
    within 70 hours of giving blood (assuming proper
    hydration), it takes up to eight weeks for your blood to
    fully recover its iron levels.

    According to the nurse who runs the pheresis machine, with
    a packed red cell donation, they actually return slightly
    more fluid back to you than they take, because of the
    saline used to prime the machine.

    But that doesn't replenish your iron. You need iron to
    carry oxygen. In effect, after giving blood you are
    slightly anemic for up to eight weeks.

    Mmm... more like four weeks. Hemoglobin is replenished every
    four weeks, but the feds throw in a safety factor of
    two, so you can only donate every eight weeks.

    IME, I've been able to recuperate after 3-4 days, but (a) I
    don't ride as hard as the OP, and (b) that's without a cold
    in the meantime.

    Pat

    --
    Apologies to those easily confused. Address is spam-
    resistant. Correct email address like pdlamb 'round-about
    comcast point net.

  12. On Mon, 8 Mar 2004 08:56:46 -0500, David Kerber <ns_dkerber@ns_ids.net> wrote:

    <It was 34 miles over pretty flat ground, with only a couple
    of short <relatively steep hills to worry about. I was in
    kind of a hurry on the <way out of the house, so I didn't
    bother to mix up the Gatorade which I <usually put in my
    water bottle, opting instead to go with plain water. <I also
    grabbed a handfull of peanut butter crackers, which are my
    normal <road food.

    <I was in the mood for a good workout, so I headed out with
    the lead <group, which consisted mostly of 20-somethings in
    full kit from an area <bike shop. I expected that I wouldn't
    be able to stick with them for <the entire ride, and sure
    enough, at about the 5 or 6 mile point, they <took off and
    dropped me like a hot rock. There were a few others around
    <my age in the same situation, so about 6 of us kind of
    stuck together <for a while. Then it tapered down to me and
    another guy 10 years older <on a Trek 5200, and we made it
    to the turn-around at a decent pace. At <the turnaround,
    because of what the wind was doing, I decided to put on <my
    fleece jacket (I had been going with just my l/s jersey with
    a T- <shirt under it up to this point). Once we turned
    around, I discovered <that I didn't have the energy to stick
    with the same group again. That <should have been a warning,
    but I was paying too much attention to <trying to keep up,
    and not enough to what my body was trying to tell me.

    I haven't done any 30+ milers [yet] this year, but I've been
    braving the cold regularly enough to have built-up decent
    mileage this season in the weather to your west,
    Connecticut. I've gotten used to wearing more layers than
    you, 3 or 4 poly tees, a sweatshirt and a jacket was typical
    for the sub freezing we're just now leaving behind.

    I left yesterday w open finger gloves, 2 longsleeve tees and
    a sweatshirt, and came back for a another sweatshirt and
    mittens. It made a big difference. I thought freezing feet
    were in the past but they returned yesterday and I hate
    frozen fingers, wind constantly biting them and my head
    reminding me that I should have worn the geeky mittens 8).
    At least I'm confident the balaclava is staying in the
    drawer until next winter.

    I don't think I've drunk one bottle of water in all the
    miles so far this year and I'm a big drinker ;. Hardly
    sweated either, it just hasn't warm enough, even with all
    the layers I wear. As for food, I've done some 20-25 milers
    on weekends with just coffee in the system without any
    problems. I guess it's my pacing. The one ride I did with
    somebody else, I happened to run into a friend on the ride,
    he actually kinda spooked me: I'd never seen another cyclist
    in this [hilly] area and I wasn't tearing it up when I heard
    him, but as it turned out I ended up slowing my pace so his
    mountain bike would stay close(but damn did that sucker
    creaked...)

    50 peeps showing up for a ride, awesome. That's a lot of
    pent up desire. And the group leaving like a bat out of
    hell, just like my club. Always takes me 15 minutes for my
    joints to stop creaking..... I like to mellow into a ride
    and then work hard until the end, everybody else seems to
    like to rip it up right from the start. Go figure?!

    You'll be in shape before you know it and by then the
    weather will be great!

    Thanks for writing.

  13. In article <[email hidden]>,
    [email hidden] says...

    ...

    Quoted message said:

    50 peeps showing up for a ride, awesome. That's a lot of
    pent up desire. And the

    Yeah, I was surprised, too; the parking lot was plumb
    full, and some of the people rode their bikes to the
    start even so.

    Quoted message said:

    group leaving like a bat out of hell, just like my club.
    Always takes me 15 minutes for my joints to stop
    creaking..... I like to mellow into a ride and then work
    hard until the end, everybody else seems to like to rip it
    up right from the start. Go figure?!

    You'll be in shape before you know it and by then the
    weather will be great!

    That's the idea: for me to be already in decent shape when
    the weather gets good for good.

    Quoted message said:

    Thanks for writing.

    I like reading other people's stories, and have discovered
    that I like writing my own, too.

    --
    Remove the ns_ from if replying by e-mail (but keep posts in
    the newsgroups if possible).

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