In article <[email hidden]>,
[email hidden] says...
Quoted message said:The more one reads about it the murkier it gets. Normally human males
produce roughly equal amounts of testosterone and epitestosterone.
Epitestosterone is a precursor hormone - the body produces it to tell
itself it needs more testosterone. So late in a stage race when the
body's been under stress for two weeks, normally a person's natural
testosterone levels would be low and their epitestosterone would be
higher.
If testosterone (T) is significantly higher than epitestosterone (E) it
suggests that testosterone has been boosted artificially, both because
artificial boosting increases T and because it suppresses E. Until
recently, the IOC and other drug testing bodies reckoned that a E:T
ratio of 6:1 was evidence of guilt. Even at that, there were a few
people who naturally triggered the test. Recently the UCI (and I'm not
sure whether this is actually the UCI or WADA or the IOC or some wider
collection of organisations) has reduced the trigger ratio to 4:1, so
naturally there will be a lot more false positives.
But, Landis' ratio was allegedly 11:1, which is clearly anomalous. But,
the reason why it was anomalous was not that his T level was unusually
high - it wasn't (and reading between the lines it may even have been
low) but that his E level was very low indeed. Which you might get if
you'd been boosting your testosterone regularly for months and months
and months, but Landis hadn't - he'd been routinely tested the day
before (and on several occasions before that), because he was in yellow.
So there's something very odd about this.
I am not a doctor, nor I have pretended to be one for the purposes of
joining an exclusive golf club, but a bloke on the telly last night said
that athletes taking testosterone did so to improve muscle build-up. As
Simon said, Landis had been in yellow before, ergo he /must/ have been
tested earlier in the race. The idea that a rider would take
testosterone for just one stage in the middle of the race is beyond
belief, not least because, if my understanding of the way these things
work is even in the same county as the truth, it would have no
performance-enhancing effect whatsoever.
Squarely in the Land of Odd indeed.
--
Dave Larrington - <http://www.legslarry.beerdrinkers.co.uk/>
I'm just a primitive creature of the heath, so pardon my savage
ignorance.