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| 05 Apr 2008 16:14:45 |
| Kikken Randal gets DVT |
See www.fasterskier.com for Kikkan's blog and Anchorage Daily News article on her medical condition. Something in the newspaper article, referring particularly to the effects of long-distance travel, that I didn't know: "Some endurance athletes are at particular DVT risk because they have a low resting heart rate. That means the blood flow to large muscles is reduced and may be more prone to clot." rm |
| 05 Apr 2008 22:30:31 |
| John Forrest Tomlinson |
| Re: Kikken Randal gets DVT |
On Sat, 5 Apr 2008 16:14:45 -0500, romie@invalid.net wrote: >See www.fasterskier.com for Kikkan's blog and Anchorage Daily News >article on her medical condition. > >Something in the newspaper article, referring particularly to the >effects of long-distance travel, that I didn't know: > >"Some endurance athletes are at particular DVT risk because they have a >low resting heart rate. That means the blood flow to large muscles is >reduced and may be more prone to clot." I thought I had that for about a day and a half. Sudden swelling in my calf led me to go to my doctor the next morning. He said he didn't think I was at risk for clotting but given the symptoms I should get it tested immediately. I went directly to a hospital for testing and the technician who has doing it seemed very concerned throughout the test. So I was laying there for 30 minutes during the test telling myself that if I had a sudden stroke or heart attack at least I would get fast treatment. |
| 07 Apr 2008 13:06:17 |
| Chris Cole |
| Re: Kikken Randal gets DVT |
romie@invalid.net wrote: > See www.fasterskier.com for Kikkan's blog and Anchorage Daily News > article on her medical condition. > > Something in the newspaper article, referring particularly to the > effects of long-distance travel, that I didn't know: > > "Some endurance athletes are at particular DVT risk because they have a > low resting heart rate. That means the blood flow to large muscles is > reduced and may be more prone to clot." > > rm Interesting comment in the article. Having a lower resting heart rate should not increase your risk of DVT at all. The predominant reason a trained athlete's heart rate is lower than say, mine :), is that they have a larger stroke volume, and when sitting at rest, their cardiac output (blood flow per unit time) is the same as mine would be with a higher heart rate but lower stroke volume. The venous system in the muscles don't "know" what your heart rate is. They only "know" what the resulting (non-pulsatile) blood flow per unit time is. For a given cardiac output, vasomotor tone state, and workload/exercise state (in this case sitting at rest), the blood flow through the deep veins of the leg would be the same, irrespective of the heart rate. So having a low resting heart rate does not mean you would have lower flow through the leg veins, more stasis, or a greater risk of developing DVT than the average camper. (If your heart rate's low because you're on say, beta-blockers, then it's a different story... but let's not go there...) Clinically, we certainly don't tend to see an over-representation of highly trained athletes amongst those in the same age group who suffer DVTs. Epidemiologically, it is not a significant independent indicator of risk for DVT. Cheers, Chris telemark@tpg.com.au |
| 07 Apr 2008 13:09:23 |
| Chris Cole |
| Re: Kikken Randal gets DVT |
romie@invalid.net wrote: > See www.fasterskier.com for Kikkan's blog and Anchorage Daily News > article on her medical condition. > > Something in the newspaper article, referring particularly to the > effects of long-distance travel, that I didn't know: > > "Some endurance athletes are at particular DVT risk because they have a > low resting heart rate. That means the blood flow to large muscles is > reduced and may be more prone to clot." > > rm Interesting comment in the article. Having a lower resting heart rate should not increase your risk of DVT at all. The predominant reason a trained athlete's heart rate is lower than say, mine :), is that they have a larger stroke volume, and when sitting at rest, their cardiac output (blood flow per unit time) is the same as mine would be with a higher heart rate but lower stroke volume. The venous system in the muscles don't "know" what your heart rate is. They only "know" what the resulting (non-pulsatile) blood flow per unit time is. For a given cardiac output, vasomotor tone state, and workload/exercise state (in this case sitting at rest), the blood flow through the deep veins of the leg would be the same, irrespective of the heart rate. So having a low resting heart rate does not mean you would have lower flow through the leg veins, more stasis, or a greater risk of developing DVT than the average camper. (If your heart rate's low because you're on say, beta-blockers, then it's a different story... but let's not go there...) Clinically, we certainly don't tend to see an over-representation of highly trained athletes amongst those in the same age group who suffer DVTs. Epidemiologically, it is not a significant independent indicator of risk for DVT. Cheers, Chris telemark@tpg.com.au |
| 12 Apr 2008 19:09:11 |
| Re: Kikken Randal gets DVT |
Things are looking worse for Kikkan: http://www.adn.com/outdoors/skiing/story/372495.html romie@invalid.net wrote: > See www.fasterskier.com for Kikkan's blog and Anchorage Daily News > article on her medical condition. > > Something in the newspaper article, referring particularly to the > effects of long-distance travel, that I didn't know: > > "Some endurance athletes are at particular DVT risk because they have a > low resting heart rate. That means the blood flow to large muscles is > reduced and may be more prone to clot." > > rm |