How can heart rate help work out training zones with power? And what other things can be done with heart rate when you have power?

I dropped your file into Golden Cheetah's Aerolab and your numbers seem to make sense.
The climb at the end helps.


Your TSS numbers don't make sense because you have not set your FTP properly. It thinks your FTP is 200.

Hmmm. OK.

1. Angry Asian is an idiot.
2. Don't be an idiot like Angry Asian.
3. People who think that the only use for a power meter is as a tool to guide racing and training don't know what they don't know. Since you're the one who said that, that applies to you.
4. There are things that only require consistency, that's true; but there are also things that require accuracy, not just consistency. Estimation of drag parameters requires accuracy, not just consistent numbers. Ramp tests depend on the ramp steps being the same size across all steps, not just consistency so if you ever do a graded exercise test you'll need accuracy. Estimation of FRC (which is rumored to be part of the new WKO+ 4) will require accuracy across the entire range of power because it measures fatigue and recovery, and consistency won't be enough for that. Plus, if a power meter were truly consistent in the sense you mean, you could simply recalibrate it to make it accurate. If you could do that and you don't then you're either lazy or an idiot.
5. You may not need (or want, or in your case, know how) to do things that require accuracy but claiming that no one else needs accuracy either is an idiotic thing to say. Kinda douchebaggy,too. Don't be so proud to be a douchebag.

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

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What do you call a power meter that is neither accurate nor consistent?





Stages.

A good way to tell is using basic estimation with physics and ride a hard climb (7%-10% average) of about 20 to 30 minutes.
The slower the climb the better since aerodynamic effects will be negligible enough. Also keep as consistent power output as you can.
Map out your ride on mapmyride.com since elevation on there is more accurate than your GPS/Garmin/Strava file.

Power is Work done over time. Your work gone is mgh (mass times acceleration of gravity times height). Power is therefore (approximately) is (Mass)*g*(elevation gained)/(time in seconds)

Mass in kilograms (kg) including rider weight, bike weight, water bottles, jerseys, spare tube, etc (those little weight matter)
g = 9.81 m/s^2, acceleration from gravity
elevation gained = in meters, how much you climbed

This is neglecting drag, rolling resistance, drive train loss and all that good stuff. But it gives you a really good idea and ball park of =/- 10 watts to let you know how accurate your power meter is.

I do a climb around my area that's around 30 minutes along and rather steep, 2531 feet over 5.2 miles (9% average grade). Last year to test this, I used a powertap and my average power was 323 watts.
My weight was 67kg, bike about 9kg. I did the climb in 30 minutes. If you plug in the numbers you will get 319 watts. So it's a good test.
http://www.strava.com/activities/92620397, here's strava file
http://www.mapmyride.com/routes/view/564353238, mapped route with elevation for your reference


hope this helps



Yu Hsiao
yuxjsaoracing.weebly.com

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Yu Hsiao,
your local professional triathlete from San Francisco Bay Area.
http://www.facebook.com/yuxsjaoracing
http://www.yuxsjao.com

You are correct.
But really easy : drop the file in Aerolab and it does all the physics and calculations for you

this is what I did and his numbers seem to make sense. He does a climb at the end of the ride that do what you mention, ie reduce aero effect.

If we have Aerolab is largely thanks to Dr Chung, who posted above.

Or...just check the static torque output as I linked to above...that's the most accurate way of checking your PM output.

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http://bikeblather.blogspot.com/

A.k.a. perform a "stomp test", as I first described >15 y ago: https://groups.google.com/...mndbKeg/fYmeQBa4ksUJ

But only for 1 min.

Yup...and physics doesn't have an expiration date :-)

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http://bikeblather.blogspot.com/

And the only reason we know that, is because the power meter is also accurate.

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

200 watts and u only sit on 30 km/hr?

What if you wanted to use tools like BestBikeSplit to guide your racing? A consistent but inaccurate power meter would result in a bad pacing plan.

What if you collect 3 years of data, learn all sorts of great things like what training load gets you in peak shape, how to taper, etc etc, then your power meter dies and you need a new one.

Now you have to start over.

What if the inaccuracy of your power meter is not a constant offset, but some non linear error, or the error involves discontinuity? Then using it to hit power zones or for pacing or for measuring progress will be problematic.

If you power meter was inaccurate but consistent why not calibrate it so it is also accurate? It only require addition to do so.

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

Only if your power meter permits you. The majority of brands don't.

If you can't calibrate a power meter you really do need to find out how accurate it is.

If you know it is consistently say 3% high then you can allow for it. But how do you test it to check its accuracy?

If you can't calibrate it and you have no method of testing its accuracy I can't see that its of much use other than for entertainment.

Perhaps I'm over fussy but as others have said, you need accuracy to test aerodynamics and training gains in fitness can be very small and take time. If you can't reliably and confidently measure small improvements, you could assume you are making small gains when you are in fact losing fitness.