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canada goose uk shop Despite the odd positive drugs test, cycling is considered to be a much cleaner sport now, which is universally welcomed. But has that affected speeds in the Tour canada goose outlet winnipeg address de France? canada goose uk shop

A Wiggins win in the Tour de France was a first for British cycling and widely celebrated as a triumph for “clean” racing, after a series of negative headlines.

buy canada goose jacket Two incidents highlighted the issue during this year’s race Frank Schleck tested positive for diuretics and withdrew, maintaining his innocence, while Remy di Gregorio was suspended after police questioned him on suspicion of using banned substances. buy canada goose jacket

buy canada goose jacket cheap Earlier this year, former Tour winner Alberto www.elcortezlv.com Contador had his 2010 title taken away and was banned for two years after testing positive for clenbuterol in that year’s tour. In June, the US Anti Doping Agency charged the retired seven time winner Lance Armstrong with using performance enhancing drugs. canada goose coats uk Armstrong denies the canada goose outlet england allegations. buy canada goose jacket cheap

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cheap Canada Goose Add to this the admission by former winners Bjarne Riis, Floyd Landis and British cyclist David Millar that they took performance enhancing drugs in the past and it is easy to be cynical about today’s tour. Millar completed his ban in 2006 and is now an outspoken anti doping campaigner who won one of the Tour de France stages in this year’s race. cheap Canada Goose

But if you look at the data from this year’s Tour are there any signs it is cleaner than before?

The obvious place to look would be at the speeds of the riders over the years.

The climb up Alpe d’Huez is one of the toughest on the Tour. In the late 1990s it was being completed in around 38 minutes, three minutes quicker than last year.

The problem with this year is that there is no Alpe d’Huez climb. There is another problem too. A canada goose outlet lot of things impact on speed, particularly the wind but also whether you are riding in someone’s slipstream and the speed of the riders you are trying to beat.

Another measure which might make a better comparison, according to Dr Ross Tucker of the sports science institute at the University of Cape Town, is the power to weight ratio.

Dr Tucker says you can see a marked difference between today and the bad old days when there were no tests for blood doping or drugs such as EPO.

canada goose coats “In the late 1990s and early 2000s if you were going to be competitive and win the Tour de France you would have to be able to cycle between 6.4 and 6.7 watts canada goose outlet store near me per kilogram at the end of a day’s stage. canada goose coats

“What we are seeing now, in the last three or four years, is that the speed of the front of the canada goose outlet michigan peloton [of] men like Bradley Wiggins, Chris Froome and Vincenzo Nibali, is about 10% down compared to that generation and now the power output at the front is about 6W/kg.”

cheap canada goose uk He says that they should actually canada goose parka uk be getting faster, not slower, because of advances in technology and sports science. cheap canada goose uk

There are probably fewer people doping, and those who are doping canada goose outlet black friday sale are doing it less severelyDr Ross Tucker, Sports science institute, University of Cape Town

canada goose uk black friday He thinks that what we are seeing now is a human race as opposed to the pharmaceutical races we saw in the past. canada goose uk black friday

“The physiological implications of canada goose outlet shop riding 6.5W/kg are for me, as a physiologist, beyond belief. What they are doing now is physiologically plausible.”

But not everyone agrees that the upper canada goose outlet store montreal limits of power to weight ratio should raise suspicion. Dr Auriel Forrester is a sports scientist who works for SRM. They are the company that supply the data tracking equipment to most of the teams in the Tour de France. She is more interested in the variability of a rider’s performance.

“We can plot the best power a rider can produce over one second, two seconds, five seconds, two, three, four hours and you will see a logarithmic decline in their power output.”

canada goose store She says that using this data you can build up a clear picture of a rider’s power profile. You can then compare this to a power profile for a particular stage and see whether they are riding normally. canada goose store

canada goose black friday sale As you can imagine, this sort of data is closely guarded by the top riders but one, Nibali, has released data for his Stage 11, on Thursday 12 July. This is the ride from Albertville to La Toussuire, which includes three stiff climbs. canada goose black friday sale

Born in Ghent, Belgium, Wiggins and his mother Linda moved to England in 1982 after her split from his Australian father Gary, himself an endurance cyclist.

Before long, the two year old would be seen tearing around the Dibden House estate in Maida Vale on his first bicycle. Having received it as a Christmas present, he immediately demanded the stabilisers be removed.

5W/kg are for me, as a physiologist, beyond belief

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