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Blood plasma miracles

oldborn

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May 14, 2010
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What do you think or beleive? Heat aclimatization requires up to 14 days, but the systems of the body adapt to heat exposure at varying rates.

So some researches show us on some way that exercise on heat conditions can incerase blood plasma volume expansion resulting from increased plasma proteins and increased sodium chloride retention and is accompanied by a 15-25% decrease in heart rate.
All that should lead to improve oxygen consumption and exercise economy.

By those guys words we should train better and be faster in desert or sun for a few days of aclimatization, with enough drinks intake.

Common science teach us that perspiration can cause reduction in blood volume (plasma) and blood becomes less "liquid", which makes the heart less efective (less oxygen etc)
 
Aug 17, 2009
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This is a very intelligent post. Elite endurance athletes shift plasma volume very quickly when they encounter hot conditions, and it most certainly has an o2 carrying capacity increase. Intentinal overheating of riders, timed correctly, is a very valuable tool. Of course, plasma increases will cause hct% to shift downward, as well, and then come back up when the plasma is jetted due to cold or shift in bicarb (altitude). Not that this would have any effect on actual hb mass in the body or total o2 carrying capacity from hb. But, oh my, it could be scandalous... The bio-passport relies on off-score much more heavily, compared to hct% or hb on their own to avoid such issues.

This plasma shifting is why whenevr we see an acute (sharp) and sudden drop in hct% in a rider, unlike aneamia, which is a slow decline, it usually coincides with a patch of very good form.
 

oldborn

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JV1973 said:
This is a very intelligent post. Elite endurance athletes shift plasma volume very quickly when they encounter hot conditions, and it most certainly has an o2 carrying capacity increase. Intentinal overheating of riders, timed correctly, is a very valuable tool. Of course, plasma increases will cause hct% to shift downward, as well, and then come back up when the plasma is jetted due to cold or shift in bicarb (altitude). Not that this would have any effect on actual hb mass in the body or total o2 carrying capacity from hb. But, oh my, it could be scandalous... The bio-passport relies on off-score much more heavily, compared to hct% or hb on their own to avoid such issues.

This plasma shifting is why whenevr we see an acute (sharp) and sudden drop in hct% in a rider, unlike aneamia, which is a slow decline, it usually coincides with a patch of very good form.

So you are trying to say that only elite athletes can have some benfits from hot climate training, and others don t?

In 1991 study i think they did not said "starting" temperature and targeting temeparature for such results.

Can we really espect those benefits if we train in Belgium and just before Amstel _Gold Race we take a trip to Bahrain, and come back on race?
 

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