- Sep 15, 2016
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Strava calories estimations are unreliable for what Bruyneel is trying to do because you are basically comparing apple to... i don't know not even oranges.Johan Bruyneel has 9 years as a professional racer, he speaks French, Spanish, English and different dialects of Dutch,routinely doing interviews in Flemish, he lives in Spain and is extremely knowledgeable about all things bike racing. He has contact with bike racing people worldwide.
He had 13 years as a director sportif with some of the most winning teams in cycling history. He co-founded a popular cycling podcast that often features pro racers..you might be confusing him with someone else with the same or similar name.
In the context of doping, doper discussions ( arguments) people lean into Strava data almost exclusively, Strava is sighted for power estimates for riders every minute.. You can just do your own calculations by taking the start-up stop time for a race and using another guess on rider's weight people do wattage calcs.
I respect your opinion to say Bruyneel and the hundreds of people inside cycling don't know what they are talking about, are unreliable, uneducated, I strongly disagree,
Johan has forgotten more about bike racing than I could ever know.
And your opinion that Strava should not be used because of it's lack of specific data, I agree but still refer to Strava because of a lack of other widely used data.
Also challenge still standing, even if calorie calculations on Strava are inaccurate, the inaccuracies don't apply to only 1 or 2 riders so given a margin of error, Pogacar's historically low calorie consumption is still strange. Needs explanation
Why is that? For starter we don't even know the source of the data from the individuals riders. The calorie count could originate from MET tables (completely worthless), HR data (maybe a bit more reliable but still garbage when talking about pro riders, and what algorithm is used then? The bike computer or the strava one? Their are at least four different formulas that i know of) or the powermeter, the only source that is somewhat reliable, with the three caveats that the accuracy and precision varies quite a a bit between the different suppliers, (the dual sided shimano powermeter used by pogacar is not called a "random number generator" for nothing).
The second caveat is that efficiency is subject to wide inter- and intraindividual variations, which we don't know if they've been taken into account for the different riders.
The third one being that we don't know what actually happened during the stage; maybe pogacar raced smarter and conserved energy better, the only way to know that would be to get the raw power data which we wont. Basically we don't know if the individual calculations are originating from the same data set, and even if they are there is so much noise that they're not fit for purpose.
BTW i know very well who Bruyneel is and he's first and foremost a liar and a cheater desperate to stay relevant despite a lifetime ban, you could not choose a worse individual to make a point...
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