Tienus said:And you know what, I watched it again and it does look like the HR data moves up in the time frame you'd expect, shortly after he puts in the big effort, and declines again some time after he slows. It is a pretty minor spike, but on the whole I would like to retract my diatribe from before. It isn't steady the way I thought I remembered it. I should have re-watched the video before my last post.
Maybe there is a small raise because its a combined effort of Froome putting in some extra power and a motor.
Before his attack at 30:54 he is already at "max HR" and he manages to put alot of extra watts in without an increase in HR.
https://www.youtube.com/watch?v=usNpx2BOabE&t=1665s
thehog said:If only there was some software on the market that could do that for you?![]()
Shameless.
acoggan said:thehog said:If only there was some software on the market that could do that for you?![]()
Shameless.
What software is that? (For extracting the data from the video, I mean...the rest could easily be done in, e.g., Excel.)
thehog said:acoggan said:thehog said:If only there was some software on the market that could do that for you?![]()
Shameless.
What software is that? (For extracting the data from the video, I mean...the rest could easily be done in, e.g., Excel.)
Ok. Let's start again. The file was always in raw format. Vayer & others already have it. The overlay video was created with the timestamps on the file to the video reel with Final Cut Pro; a person (unnamed) who worked with Vayer to produce it. Reach out to Antoine, he'll send you the file.
acoggan said:thehog said:acoggan said:thehog said:If only there was some software on the market that could do that for you?![]()
Shameless.
What software is that? (For extracting the data from the video, I mean...the rest could easily be done in, e.g., Excel.)
Ok. Let's start again. The file was always in raw format. Vayer & others already have it. The overlay video was created with the timestamps on the file to the video reel with Final Cut Pro; a person (unnamed) who worked with Vayer to produce it. Reach out to Antoine, he'll send you the file.
I'm not that interested. :lol: That's why I hoped to Tom Sawyer someone here into examining the data in a logical manner.
thehog said:acoggan said:thehog said:acoggan said:thehog said:If only there was some software on the market that could do that for you?![]()
Shameless.
What software is that? (For extracting the data from the video, I mean...the rest could easily be done in, e.g., Excel.)
Ok. Let's start again. The file was always in raw format. Vayer & others already have it. The overlay video was created with the timestamps on the file to the video reel with Final Cut Pro; a person (unnamed) who worked with Vayer to produce it. Reach out to Antoine, he'll send you the file.
I'm not that interested. :lol: That's why I hoped to Tom Sawyer someone here into examining the data in a logical manner.
But you just said in your last post that would do it? Make up your mind.![]()
To be honest, I don't think people here are interested in what you could produce either, so its all squared up.
acoggan said:red_flanders said:kingjr said:Flanders, you were talking about an acceleration the likes of which we have never seen. Are you referring to how violent the acceleration was, or what it looked like style-wise?
I don't know, it's subjective. Doesn't really matter, it was a massive acceleration which should have moved his heart rate.
And you know what, I watched it again and it does look like the HR data moves up in the time frame you'd expect, shortly after he puts in the big effort, and declines again some time after he slows. It is a pretty minor spike, but on the whole I would like to retract my diatribe from before. It isn't steady the way I thought I remembered it. I should have re-watched the video before my last post.
Sorry for the red herring.
Hilarious.
sniper said:"teach us". Lol,
The guy who went with Coyle's Lance study should now teach us about Froome's heart rate.
"not really fair"? Andy's reaction is about the saddest reaction I've ever seen to somebody admitting a mistake.
Maybe it's an act of class he's wholly unfamiliar with. Hence 'hilarious'.
Andy if that's how you treat students, then for god sake DONT teach us.
Serriously though, basically the near-whole cycling world thinks HR is relevant. Just not acoggan. Ergo, HR is irrelevant. Froome's leaked Ventoux heart rate data looked unusual, both to the trained and to the untrained eye. Just not to acoggan. Ergo there was nothing unusual about it. I think that's the lesson for today.
ScienceIsCool said:acoggan said:red_flanders said:kingjr said:Flanders, you were talking about an acceleration the likes of which we have never seen. Are you referring to how violent the acceleration was, or what it looked like style-wise?
I don't know, it's subjective. Doesn't really matter, it was a massive acceleration which should have moved his heart rate.
And you know what, I watched it again and it does look like the HR data moves up in the time frame you'd expect, shortly after he puts in the big effort, and declines again some time after he slows. It is a pretty minor spike, but on the whole I would like to retract my diatribe from before. It isn't steady the way I thought I remembered it. I should have re-watched the video before my last post.
Sorry for the red herring.
Hilarious.
That's not really fair.
Most people realize that there's a good correlation between heart rate and power output. So in that light, it's quite reasonable for someone to assume that more power equals a bump in HR. It'd be great if you could teach us about the subtleties. HR lags effort. HR is "noisy". A billion things affect HR, not just effort - hydration, fatigue, temperature, etc, etc. You could also explain that this is why we use stupidly expensive power meters instead of HR meters.
It's not hilarious. But it is pompous as hell.
John Swanson
sniper said:"teach us". Lol,
The guy who went with Coyle's Lance study should now teach us about Froome's heart rate.
sniper said:"not really fair"? Andy's reaction is about the saddest reaction I've ever seen to somebody admitting a mistake.
acoggan said:ScienceIsCool said:acoggan said:red_flanders said:kingjr said:Flanders, you were talking about an acceleration the likes of which we have never seen. Are you referring to how violent the acceleration was, or what it looked like style-wise?
I don't know, it's subjective. Doesn't really matter, it was a massive acceleration which should have moved his heart rate.
And you know what, I watched it again and it does look like the HR data moves up in the time frame you'd expect, shortly after he puts in the big effort, and declines again some time after he slows. It is a pretty minor spike, but on the whole I would like to retract my diatribe from before. It isn't steady the way I thought I remembered it. I should have re-watched the video before my last post.
Sorry for the red herring.
Hilarious.
That's not really fair.
Most people realize that there's a good correlation between heart rate and power output. So in that light, it's quite reasonable for someone to assume that more power equals a bump in HR. It'd be great if you could teach us about the subtleties. HR lags effort. HR is "noisy". A billion things affect HR, not just effort - hydration, fatigue, temperature, etc, etc. You could also explain that this is why we use stupidly expensive power meters instead of HR meters.
It's not hilarious. But it is pompous as hell.
John Swanson
By "hilarious" I found it amusing that people seem to be all wound up about the fact that heart rate wasn't successfully recorded during all of Froome's lab testing because they want to compare it what happened during that stage, when there isn't agreement on even the pattern of the response. Seems like that's putting the heart before the course, no?
ScienceIsCool said:He knows things that you don't.
acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
Digger said:acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
I know two sports scientists with years of experience in cycling and a number of world tour cyclists - who say this video is highly suspicious. Seems we are all wrong.![]()
Digger said:acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
I know two sports scientists with years of experience in cycling and a number of world tour cyclists - who say this video is highly suspicious. Seems we are all wrong.![]()
I tried to bring people's attention to it:acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
sniper said:I think the delay has been acknowledged (at least I remember we discussed that a few months ago) and it is not being ignored now (afaict).
The problem is the low heart rate and the fact that it only jumps to 162-3 max, whereas you'd expect it to go closer to 180 when/after he jumps.
Many will know that Froome aligned with our organization some years ago whilst riding for Team Barloworld. We have asked for clarification from Chris on a number of occasions in the last 18 months via email and direct message on Twitter if he still wished to form part of our organization. As a result of not receiving such clarification from Chris or Team Sky in recent days we have made the difficult decision to remove his bio page from our website. This in no way insinuates that Froome is a suspicious rider but we feel that if riders do not support our organization then there is no reason for us to promote them as such.
sniper said:I think the delay has been acknowledged (at least I remember we discussed that a few months ago) and it is not being ignored now (afaict).
The problem is the low heart rate and the fact that it only jumps to 162-3 max, whereas you'd expect it to go closer to 180 when/after he jumps.
Alex Simmons/RST said:I tried to bring people's attention to it:acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
viewtopic.php?p=1954786#p1954786
acoggan said:Alex Simmons/RST said:I tried to bring people's attention to it:acoggan said:ScienceIsCool said:He knows things that you don't.
All I might know (that hasn't already been mentioned in this thread, at least that I've seen) is that not only are changes in heart rate delayed with respect to changes in power, but the kinetics have been fairly well-described. I am therefore surprised that no one seems to have taken the knowledge into account.
viewtopic.php?p=1954786#p1954786
Ta. Since I only pop in here once in a blue moon, I'd missed where you had pointed that out.