hrotha said:
Furthermore, hadn't Hamilton been warned beforehand because his values were all over the place?
Yeah, and according to Howman, calling a rider in and telling him his test results are "suspicious" is “inappropriate”.
The conspiracy theory makes for an interesting story but overall, with the info we currently have, it doesn't add up.
Yes and no. No question Tyler was blood doping during that period. You could argue he was a runaway train heading for a cliff. But what he said to Pelley, which will probably be the most sincere statement he ever makes publicly, was that he was transfusing his own blood. Doesn't matter how much of that you infuse, and what it does to your off-scores, it does not get you a positive in an HBT.
He did suggest his Olympic positive could have resulted from previous doping. Assuming he understands the HBT--he should, after all the time and money he spent trying to overturn the decision--he would only make that statement if he had been doping with someone else's blood. Still, there are anomalies in his Vuelta test results that can’t be explained by transfusing someone else’s blood in the normal manner.
But here’s an idea that never occurred to me before, and which could explain Tyler’s strange HBT results. Maybe he was intentionally mixing his own blood with someone else’s blood. Why would he do that? To reduce the amount of his own blood he had to use.
As we have discussed here before, one way to beat the passport test (and its forerunner, the off-score, in place in 2004), is to follow a withdrawal with an immediate re-infusion, and riders may go through several cycles of this during the season. But the cycle has to begin at some point with a withdrawal that is not followed by a transfusion. This makes the rider vulnerable to any testing at that time, as well as weakened for training.
These are the main advantages of using someone else’s blood. No risky withdrawals necessary, and no down time on the bike. But given the need for secrecy and compatibility, it might be difficult to get all the foreign blood you need for the targeted races. So I can imagine riders going through withdrawal/infusion cycles, but supplementing their own blood with foreign blood at times. This would reduce the amount of foreign blood they had to procure, while helping them keep to their withdrawal/transfusion cycles.
Thus during or preceding the Vuelta, Tyler might have infused, say, 500 ml of blood, but only a portion of that was someone else’s. This could have resulted in the very low levels of foreign antigens detected.