FTP test fails

Hi all,

yesterday I tried to perform FTP test with my Edge 830 for the first time.

My current determined FTP from Garmin is 208 W (should be quite a bit higher).

First I started with 20 minutes with very easy cycling, then realized that I have to push lap button to start with the core FTP test.

Then first block was 215 W for 4 minutes, followed by 235, 260, 280 and ultimately 305 for 3 minutes.

After short 3 minute cool down periode, I received message that FTP could not be calculated based on the training. Please try again.

That is quite frustrating... seems that the FTP test is not realiable.

And there is also no way to repeat it the same day as it was exhausting. Anybody who has experienced the same?

That's the link to my activity: https://connect.garmin.com/modern/activity/4263345922

Did I anything wrong?

Regards,

Peter

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  • Garmin uses a third party service, Firstbeat, for their FTP calculations. 

    https://www.firstbeat.com/en/consumer-feature/functional-threshold-power-ftp/

    Relevant quote:

    To calculate your FTP, the Firstbeat analytics engine requires a stable VO2max estimate and enough quality heartbeat data recorded across a range of different intensities from low to high. Because external workload is a factor in the calculation, you will also need to ensure your bike’s power meter is connected to your device. Data can be gathered during a guided test specifically designed to record the data needed to detect your FTP, or it can be calculated from normal running activities that include enough quality heartbeat data from each zone.

    If you are seeing a failure message, it sounds likely that your power was not steady enough for their algorithm. In my experience it is quite strict.

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  • Garmin uses a third party service, Firstbeat, for their FTP calculations. 

    https://www.firstbeat.com/en/consumer-feature/functional-threshold-power-ftp/

    Relevant quote:

    To calculate your FTP, the Firstbeat analytics engine requires a stable VO2max estimate and enough quality heartbeat data recorded across a range of different intensities from low to high. Because external workload is a factor in the calculation, you will also need to ensure your bike’s power meter is connected to your device. Data can be gathered during a guided test specifically designed to record the data needed to detect your FTP, or it can be calculated from normal running activities that include enough quality heartbeat data from each zone.

    If you are seeing a failure message, it sounds likely that your power was not steady enough for their algorithm. In my experience it is quite strict.

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