DirtyWorks said:
Well, Dr. Veloclinic is saying his grand tour profile does not fit a clean rider's.
http://veloclinic.tumblr.com/post/63542182838/analysis-horners-biopassport-data [...]
Thanks for the link! Quite informative.
I have to disagree with your analysis, though - Dr. Veloclinic did a good job keeping his analysis objective. Specifically, I'd like to point out parts of the summary toward the end of the article:
Considereing the big picture, there is room for Horner to argue his case. His initial volume expansion and the Corsetti data suggest the possibility that Horner falls within a subset of GT riders whose Hgb concentration naturally rebounds in the second half of a GT. Similarly, the limited amount of “normal” data for reticulocyte count during GTs means that a subset of GT rider’s whose reticulocyte count is suppressed naturally may exist as well. On the other hand, the Hgb concentraion rebound back to baseline, and the statstically significant reticulocyte suppression are consistent with the expected effects of blood transfusion during a GT based on studies reviewed above. Overall, Horner’s data does not contain the elements of a reassuring Biopassport profile with the limitations explained above noted.
A more accurate summation of this article, in my opinion is: "Dr. Veloclinic says that Chris' bio passport does not prove Chris is clean."
In other words, certain things on the bio passport could be consistent with doping, but could also have alternate explanations.
The problem with the whole process is that the research on what constitutes "normal" for these blood values is imperfect - so while certain patterns have certainly been detected as being associated with doping, this is not necessarily strong enough to prove that someone's doping.
Hopefully the presence of the biopassport will help in furthering the research. The data that's being collected should give more insight into what is and what isn't normal. Of course the confounding factor to all of this is the question of what percentage of the peloton is still doping - if a significant percentage of the peloton is doping, that somewhat invalidates the data being collected (at least in terms of establishing a baseline of what a "clean" blood profile looks like).