9 juil. 2017

Triathlon: Neural Pathways versus Oxygen Delivery

It is interesting the way we “read” information.  It depends on the state of our knowledge; it could be dangerous but there is information in any kind of research as the one previously described in the last post and the one below.  This is the way fake news work on people, conclusions are made with a limited knowledge.  The same way that Homer Simpson does:
By now, you’ve seen the headlines: “EPO Doesn’t Boost Performance.” That’s right: In the British Journal of Clinical Pharmacology, researchers reported that “there is no scientific basis to conclude rHuEPO has performance enhancing properties in elite cyclists.” But should you believe them?...
“This thing is nuts,” he says. “It’s correct about only one thing: There are essentially no studies on really, really elite people.” In other words: Don’t go reinstating Lance Armstrong into the pantheon just yet. 
So where did the study go wrong? It goes back to basic exercise physiology and the science of how races are won, Joyner says. The researchers don’t understand the relationship between VO2 max—your body’s maximum ability to consume oxygen, or your “performance ceiling”—and other metrics like lactate threshold, a key predictor of endurance performance, Joyner says.
(In the context of cycling, a five-minute-long pursuit would best correspond to a VO2 max effort, while a 60-minute time trial would closely match your lactate threshold.)
After reviewing the existing literature on EPO, the researchers found that a doping regimen can lead to between a 7 and 9.7 percent increase in VO2 max, with an “increase in performance estimated by a time-to-exhaustion test of ... 9.4 percent (versus 1.5 percent in placebo-treated subjects) and 16.6 percent in trained subjects.”

We have mentioned that the researchers should be knowledgeable about sports in order to understand how to do research and where the flows in our thoughts could exist.  Common sense is another thing to take into account; if we see it and anecdotally it is said that exist, we should continue to look for flows in our research or the way we think about the problem.  But let’s take a look at the findings.


We also mentioned that increasing the VO2max does not improve our speed (triathlon needs speed) because our technique is limiting us; practicing technique with speed could help to make the difference.  In other words, you can deliver oxygen but the neural pathways are not there.  Sorry, wrong address! 


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