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What is the evidence that training with power is superior to . . .

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Old 01-05.-2008, 03:54 AM   #286
Fday
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Default Re: What is the evidence that training with power is superior to . . .

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Originally Posted by rmur17
for my own case, from around '94 onwards my only data, admittedly rough, were from local TT's on my road bike with clip-ons, semi-aero wheels etc. We ran about 10 events per yr on the same course -- enough to get a couple of good light wind days in there.

In '96 I set a PB of 30:22 ... only incrementally better than the previous yrs --- typically around the 30:30-30:40 mark would be my best for the year. In 2002 in August and coming back to racing form, with the same gear, I did 30:50. 2-3 months later I figure I could have done a bit better so let's say 30:30 was my baseline over those seven years.

The main point is that I personally, and parenthetically those around here, didn't measurably improve over that period of time. I don't know what FTP I was at over those years but (roughly!) judging from best TT performances and with close to constant equipment, I have to say somewhere around the 315-330W mark.

I haven't been able to run a solid TT on that course since 2006 but I know in good conditions and with decent aero gear that I can target 26 flat or high 25's right now. that's a simple projection of current power vs. ~350W in 2006.

That's roughly 20% faster since my pre-PM days and, as we all know, on a typical TT course that takes a much better than 20% increase in power-to-drag ratio (W/CdA) to achieve.

Anyhow, the PM is just a good modern tool. it's up to the user or coach to make the best of it.
You do understand don't you that the same people who are using data just like yours to tout how wonderful the PM is as a training tool completely discount similar reports from people who have trained on PC's as "it probably would have happened anyhow, where is the proof it was due to the PC's?" That is the problem with anecdotal evidence. It is suggestive of certain outcomes but hardly compelling to anyone who knows anything about scientific proof.

I don't doubt it is an effective tool, especially in the right hands. Just wondering if the "how effective" question can be answered, especially as regards in comparison to other methods to achieve the same end. Could you have achieved similar (or, possibly, even better) results using a HR monitor and portable lactate analyzer? Who knows?
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Old 01-05.-2008, 04:13 AM   #287
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Default Re: What is the evidence that training with power is superior to . . .

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You do understand don't you that the same people who are using data just like yours to tout how wonderful the PM is as a training tool completely discount similar reports from people who have trained on PC's as "it probably would have happened anyhow, where is the proof it was due to the PC's?" That is the problem with anecdotal evidence. It is suggestive of certain outcomes but hardly compelling to anyone who knows anything about scientific proof.

I don't doubt it is an effective tool, especially in the right hands. Just wondering if the "how effective" question can be answered, especially as regards in comparison to other methods to achieve the same end. Could you have achieved similar (or, possibly, even better) results using a HR monitor and portable lactate analyzer? Who knows?

Well I never have posted any of that blurb before -especially the bits before 2002 as I have no reason to tout anything! you asked: I answered. For me, the addition of a much better measuring tool to my toolbox produced a marked change in performance over the last half of an ~15-yr period.

Clearly it wasn't the tool per se, it was what I did with it. I'm sure others have covered it as well but I found that simply having a good measurement available all year round made training that much more focused and motivating. I train indoors for ~six month of the year. Having power targets to chase and motivate me is a big, big, big part of my progress.

How in the world would I do that using an HRM or lactate analyzer? Before you say compare HR and/or lactate response using a fixed trainer, wheel pressure, coast-down and speed etc --- those only a poor estimate of ... power delivered to the rear wheel.

So I definitely now train significantly harder, for less hours per week and with better results. And I'm still motivated to eek out another few W even at my age! Hard to argue against that.
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Old 01-05.-2008, 04:52 AM   #288
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Default Re: What is the evidence that training with power is superior to . . .

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That is the problem with anecdotal evidence. It is suggestive of certain outcomes but hardly compelling to anyone who knows anything about scientific proof.


Yet your website is chock full of similar (well, actually not-all-that-similar, in that they practically always lack objective data) testimonials, all intended to convince people to buy your cranks - go figure!
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Old 01-05.-2008, 05:48 AM   #289
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Default Re: What is the evidence that training with power is superior to . . .

Great work Frank, now we have stumped up with more than enough facts the problem has changed to "too much data".
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Old 01-05.-2008, 06:23 AM   #290
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Default Re: What is the evidence that training with power is superior to . . .

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Great work Frank, now we have stumped up with more than enough facts the problem has changed to "too much data".
No surprise there.
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Old 01-05.-2008, 06:46 AM   #291
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Default Re: What is the evidence that training with power is superior to . . .

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Yet your website is chock full of similar (well, actually not-all-that-similar, in that they practically always lack objective data) testimonials, all intended to convince people to buy your cranks - go figure!
Testimonial and anecdotal evidence is not worthless, as it can lead people into thinking along new lines. Sometimes it is all one has. However, it is pretty much worthless for "proving" points which is why we are supportive of anyone who wants to do a scientific study regarding our product.

If you think PM "testimonial evidence" is "better" because they all have "objective" power data, all I can say is LOL. :-)
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Old 01-05.-2008, 06:58 AM   #292
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Default Re: What is the evidence that training with power is superior to . . .

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If you think PM "testimonial evidence" is "better" because they all have "objective" power data, all I can say is LOL. :-)
Better than what alternative? The power meter doesn't lie.
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Old 01-05.-2008, 07:10 AM   #293
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Default Re: What is the evidence that training with power is superior to . . .

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The power meter doesn't lie.
Unless, of course, it hasn't been calibrated, zeroed, has a bad straing gauge, the file has been manipulated, it is too hot, it is too cold, and on and on. :-)
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Old 01-05.-2008, 07:58 AM   #294
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Default Re: What is the evidence that training with power is superior to . . .

People manipulate files. Who would sink that low?
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Old 01-05.-2008, 08:01 AM   #295
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Default Re: What is the evidence that training with power is superior to . . .

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People manipulate files. Who would sink that low?
Ahh, but Frank says it was only "a practical joke", so that makes it better...
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Old 01-05.-2008, 08:10 AM   #296
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Default Re: What is the evidence that training with power is superior to . . .

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Unless, of course, it hasn't been calibrated, zeroed, has a bad straing gauge, the file has been manipulated, it is too hot, it is too cold, and on and on. :-)
Which can and does happen with research studies too. I've seen it (poor calibration) in research stuff in my own professional field. So being a reviewed study does not make it immune from scrutiny. It's not like peer reviewers went and checked the SRM calibration for the researchers.

Yup, Frank will cast doubt on that but if the study is about PC's...WELL THEN...it must be totally on the up and up, right? No chance the cal was off on the studies Robert mentioned, huh? (I guess it doesn't matter since they didn't show an increase in power output with PCs anyway.)
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Old 01-05.-2008, 08:27 AM   #297
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Default Re: What is the evidence that training with power is superior to . . .

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Which can and does happen with research studies too. I've seen it (poor calibration) in research stuff in my own professional field. So being a reviewed study does not make it immune from scrutiny. It's not like peer reviewers went and checked the SRM calibration for the researchers.

Yup, Frank will cast doubt on that but if the study is about PC's...WELL THEN...it must be totally on the up and up, right? No chance the cal was off on the studies Robert mentioned, huh? (I guess it doesn't matter since they didn't show an increase in power output with PCs anyway.)
No, all that stuff applies to PC studies also. That is why a study should be repeated by separate groups to confirm the findings. No need to repeat that negative study because even I would have predicted that outcome as a probablity.

The study in question, the only PC study with a "negative" (no benefit) outcome, most likely did not show an increase because there wasn't enough stimulus. 10 short training sessions in 5 weeks is ludicrous. This problem would be obvious to anyone who has ever trained on the cranks, not so obvious to everyone else who all wonder that the big deal is. LOL
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Old 01-05.-2008, 08:44 AM   #298
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Default Re: What is the evidence that training with power is superior to . . .

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Originally Posted by rmur17
How in the world would I do that using an HRM or lactate analyzer? Before you say compare HR and/or lactate response using a fixed trainer, wheel pressure, coast-down and speed etc --- those only a poor estimate of ... power delivered to the rear wheel.

Interesting read and an impressive improvement.

Just wondering though... if you're training six months of the year indoors, you'd be able to track improvements through increases in speed which is in direct corrolation to the speed of the rear wheel.
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Old 01-05.-2008, 08:56 AM   #299
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Default Re: What is the evidence that training with power is superior to . . .

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Originally Posted by rmur17

How in the world would I do that using an HRM or lactate analyzer? Before you say compare HR and/or lactate response using a fixed trainer, wheel pressure, coast-down and speed etc --- those only a poor estimate of ... power delivered to the rear wheel.
HR and lactic acid are both methods of measuring training effort, both quantifiable. So you measure your training effort using those tools and measure the benefit on the race course or through testing or some other measure. It is not possible to measure improvement using HR and lactic acid alone.

Using a power meter is not the only way of quantifying training effort. The question I asked was whether other methods of assessing training effort might be just as good (maybe not as good for you as you may need those numbers staring you in the face for motivation but others may respond better to other types of feedback) when all users are taken into account and results averaged.
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Old 01-05.-2008, 10:02 AM   #300
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Default Re: What is the evidence that training with power is superior to . . .

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Interesting read and an impressive improvement.

Just wondering though... if you're training six months of the year indoors, you'd be able to track improvements through increases in speed which is in direct corrolation to the speed of the rear wheel.


but how do you correlate your indoor numbers with the outdoor power numbers or outdoors in a headwind and a tailwind uphill downhill and the one inside when the tire pressure was slightly different than another day and the one where the pressure of the tire against the roller was slightly different than another day... that's the beauty of the power meter.. whatever, where ever it will tell you your power... no fuss, no muss, no approximation, no calculation, no guessing.. it just tells you your power.
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