Wrist based power - High power on easy runs

Hej,

I tested the new wrist base power feature from Garmin and have some question. I did an easy run (Garmin Zone 2) 5:30 min/km pace. But the power is showing Zone 5 (Short Interval Power) with an AVG Power of 340W. I understand that Run power is a tricky thing if it comes to comparing different runners to each other but this seams very off. So I have a few ideas:

- Since I only did easy runs so far with power it still needs to "learn" my whole running power spectrum (Easy Run, Tempo Run, Intervals) to adjust accordingly.

- I actually have such a bad running technique that the data is correct but I just waste lots of energy. Here it would be interesting to get an idea what data Garmin uses to estimate the power? This could also help me a lot to improve my technique in the long run...

- Something is broken?

Any ideas?

0 Etupes25 over 2 years ago

The only issue you have is that your running FTP is not right.

You can run the run FTP test provided by the watch; this will give your actual FTP for running and your power zones will be right.

0 EnormoDerClown over 2 years ago

I think you gave yourself your answer: "Since I only did easy runs so far with power it still needs to "learn" my whole running power spectrum (Easy Run, Tempo Run, Intervals) to adjust accordingly."

Without training in every zone or doing an all out effort there is no way the watch has the correct ftp value for you

0 Aetsch820 over 2 years ago

I also had about 400 Watt with about 9 km/h

funny

0 Flow over 2 years ago in reply to Etupes25

Could you provide more information on this running test? I Can't finde it. And I only know the processes for a cycling FTP test.

0 ApoC over 2 years ago

Your HR ZONE2 looks weird. With given values, you have to be like 215 HR MAX, given the fact it should be 60-69% of HR MAX, which is probably not correct.

I suggest check your HR MAX setting and % settings for the zones

0 [Redacted] over 2 years ago in reply to ApoC

Does it? That looks like %LTHR to me.

0 Etupes25 over 2 years ago in reply to Flow

Start run > training > lactate threshold test

If this doesn’t populate the FTP, you can also run a field threshold test and fill out manually.

Run with chest strap for HR accuracy, HRV availability. For pace GPS is good enough, calibrated foot pod better.

0 Etupes25 over 2 years ago in reply to Etupes25

Another approach is to calculate back the threshold power. Run steady for at least 45mn in zone 2 and then 3. Get the nominal power for each lap, use the % in the LT power zones to deduce the FTP number. That is a less painful way to get going.

Also, leave FTP auto-detection on when you run your actual threshold test.