- Dec 31, 2011
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python said:I generally agree with this estimate (and with your interpretation of tyler‘s gains) , though, in the 90’s the epo advantage could probably be pushed another couple % up by those willing to take the extra health risk - as there was no epo test to fear. Still, your argument that natural selection trumps blood doping remains a convenient hypothesis. notwithstanding your other numbers below
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Taken at face value, these numbers (except the last one - waxing) are not unrealistic even plausable (based on personal experience and some reading) but there are 3 problems with your numbers. Problem 1 - selection of proper ski STIFFNESS is lacking. Wrong stiffness accounts for more than a perfect wax. Problem 2 - they never are fixed values but ranges, particularly over the developments in the 90s. Speaking of waxing (also see trond‘s and wch posts), even at the elite level, the difference may exceed 5% in extreme cases as was illustrated by northug vs. legkov times in the individual 15 k skate in val di fiemme. A perfectly gliding northug was 7% faster than legkov who (as we now know for a fact) was skating on bare plastic bases starting at km 2. If northug was fitter that day than anyone by 1-2% (which he probably was), the rest of the difference must have been in the skis. Problem 3 is that the factors above are RANDOM variables. the elementary common sense and statistics tell us that they can NOT always line up in the direction beneficial to norway only , much less for over 10 years ! There are days when even norwegian servicemen make mistakes. besides, even if we assume that Norway somehow held a stone-grinding + waxing secret for a while, it can not be permanent in the era of hyper communication/mobile professional/cross-hiring. thinking otherwise is fitting facts to a forgone conclusion.
all these considerations make your simple natural selection theory.. well, a convenient unproven theory. all that, while new questions about the norwegian 90's are either shoved aside, ignored or met with threat of court action.
I'm not exactly sure if I follow your argument completely.
I call it waxing, but you may include of course selection of skis into that too. If talking about stiffness this really also enters another interesting element of efficiency and technique. A runner with poorer technique will need to select softer skis, which again will mean more wax resistance, less glide downhill, and more loss of wax. So these things are interrelated.
If putting grinding aside, I don't think one can say ski preparation can account for 5%. I mean certainly that is possible to achieve, but I don't see it realistic as a difference you are able to achieve very often.
What you compare of Northug and Legkov I think is in great deal a result of the fact that Northug felt in his best possible form that day, and the evening before, and while I haven't heard what happened to Legkov, I think there is more to it than just the skis.
Actually when I estimated 0-1.5% on waxing, I considered the relay in Vancouver where Hjelmeset had poor skis on his leg. It's a situation where you certainly don't give up, so it's a matter of full effort regardless. He lost 30s on 28min. Well that is 1.8%. Actually, when I look again, that was his loss on the leg, but Bauer was eating up a deficit, so towards Bauer it was 51s, 3.0%. But that should be a good vs bad waxing. It depends what one shall consider, good vs bad, good vs great..? It depends on the argument what number is appropriate to use, but it can range from 0 to 3% at least.
Now about these things being random, I don't exactly get what you meant by that. Certainly Norway had bad wax-days, but it's not like we won every race. Still I don't think it can be considered just an opinion or hypothesis that we've had a better hit rate on achieving good skis. This has been quite repeatedly commented by race commentaries and competitors up through the years.
In 1992 there really existed an "unfair" advantage due to grinding. In 1994, we also had an advantage of being a home event, with the experience you have of the local snow to hit an optimal ski preparation for every race. The latter is not really quantifiable for the specific races, but I don't think it's realistic to dismiss it.