Re: Re:
Many hematological studies showed a ~15% decline in Hct with elite cyclists over a GT. I don’t see how an outlier wouldn't be affected by that, particulary when they start climbing in the third week. There's also studies that show androgenic steriods stimulate erythropoiesis resulting in increased Hct, one study as much as ~9.6%., about the same as some test subjects in the Ashenden microdose EPO study. I also posted a link on the study of methylphenidate, which was widespread in the 70s/80s, that shows significant performance enhancing benefits. I don’t see how a clean rider would not be at a disadvantage from another rider who uses these PEDs in a 3 week race. Maybe not a shorter stage race, certainly not a single day event...but a GT?
pmcg76 said:Nomad said:Alex Simmons/RST said:Pure logic tells us that's an impossible proof for anyone to arrive at about any rider/athlete, let alone for Lemond.firefly said:Or do you have irrefutable proof that Lemond did not dope?
Spock says there are only two possibilities regarding an athlete's doping status:
i. they are or were doping (since there is clear evidence of such, e.g. an ADRV, admission etc)
ii. we don't know (since there is no clear evidence and proof of not doping is impossible to ascertain)
It's reasonable to assign a probability ranking to athletes in the latter category though.
Ranking needs be based on quality of evidence (e.g. testing the validity of primary sources) and sound reasoning (logical fallacies need not apply).
Motivated reasoning and other forms of confirmation bias needs to take a hike. High volumes of low quality evidence (e.g. here-say) are pretty worthless when assigning a ranking. One cannot cherry pick either. IOW the weight of all valid evidence is what matters when determining a ranking.
So wrt to Lemond, the probability is non-zero (since it can't be zero for anyone) but is less than 100% since clear evidence for case (i) is not satisfied.
There will be a baseline starting probability level for all elite athletes because of the mere fact of competing in a sport known for high rates of doping. If we use e.g. the Dopeology database, then a baseline probability value of 50% would seem reasonable for elite cyclists, although it could well be more/less and it has probably changed over time. It's then a case of how one adjusts that baseline probability up or down for an individual based on the balance of valid evidence.
Good analysis (I like your Spock analogy). I've been reading some of the millions of posts on this thread...it's like a never ending baseball game. But interesting and thought provoking info presented on both sides of the debate.
So, I guess if one simplifies the LeMond paradox we have no positive test, no confession & no scandal. This would be the black & white answer (i.e., the proverbial "no hard evidence")...so he's completely clean from that standpoint. But it begs the question of how could a rider win a GT clean in a sport with a history & culture of doping, particulary with GT champions? Anquetil, with his famous (or not so famous) cocktail, said the demands of the Tour make it impossible to ride without chemical assistance. Then came Merckx & Fignon with their amphetamines, Thevenent with steriods, Delgado with a masking agent, and so on. There's a consistent pattern with GT winners. And as everyone probably knows, there's science showing how destructive a 3 week GT is on the human body:
http://www.bicycling.com/racing/tour-de-france/how-racing-the-tour-de-france-changes-cyclists-bodies
Therefore, from a scientific standpoint, how could LeMond, or any GT winner, withstand the negative effects of a GT and not only finish strong but win the event, presumably against other talented contenders who are using PEDs? How did LeMond avert the fatigue & catabolic effects of a 3 week race?
The popular & prevelant PEDs of the 70s & 80s were amphetamines, steriods & testosterone. Though unlike the "rocket fuel" and transformation changing EPO of the 90s, these PEDs were performance enhancing & would not only give an equally talented rider an edge, but certainly aid in recovery and avert some of the negative physiological effects of a grueling GT. Studies have shown that steriods & T are not only anti-catabolic but stimulate erythropoiesis resulting in a modest increases in Hct .And a popular amphetamine of that time period, methylphenidate, has been shown in a study with elite cyclists to significantly improve higher power outputs, O2 consumptions, ventilation volume and perceived time to exhaustion:
http://www.ncbi.nlm.nih.gov/pubmed/19052141
So, maybe LeMond is clean. But how did his body hold up so well over 3 weeks in a grueling Tour beating other top contenders, many of whom were using the PEDs of that era?
Because it always comes back to same tenants, can someone who has the natural ability and the natural recovery beat the inferior guys who are doping. As we dont really know the exact starting reference for each individuals, it is hard to know when the natural ability ends and the chemical assistance starts. Every pro will decline over 3 weeks but will do so at differing rates depending on their physical abilities, so you end up with those with the best recovery, both physical and mentally at the top. How many of those were doing so artificially is the million dollar question. There are such things as outliers but the question is, how big is the outlier?? Is the talent big enough to overcome the doping?? Problem is, we seem to have no definitive research anywhere to demonstrate this so are left with guessing and conjecture .
Many hematological studies showed a ~15% decline in Hct with elite cyclists over a GT. I don’t see how an outlier wouldn't be affected by that, particulary when they start climbing in the third week. There's also studies that show androgenic steriods stimulate erythropoiesis resulting in increased Hct, one study as much as ~9.6%., about the same as some test subjects in the Ashenden microdose EPO study. I also posted a link on the study of methylphenidate, which was widespread in the 70s/80s, that shows significant performance enhancing benefits. I don’t see how a clean rider would not be at a disadvantage from another rider who uses these PEDs in a 3 week race. Maybe not a shorter stage race, certainly not a single day event...but a GT?
