Let's See Your BREAKTHROUGHS! 💥

It was in sim mode on Zwift. I’m not sure what that workout is but I was doing 3 sets of 8:00 - 30/30s while keeping the 30s off at a moderate pace. This is what the On / Off looked like for the first set. Do you find the TP and LTP number to be fairly accurate? For reference it gave me 409/361. The day before this ride (Saturday) I did 6 hours with a 40 minute high tempo block at 385 early in the ride + 4 x 5:00/1:00 tempo late in the ride.
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Hard to tell if it is accurate. But looking from the intervals I suspect you could go even further as the last interval was just as hard as the previous intervals (same power and duration). If you extended the duration or the power, you would have gotten a even better signature. You might want to try one of the fitness tests in Xert. Make sure you do it in slope mode.

Thank you for all the insight! It is definitely an awesome tool but a lot to learn coming from the traditional model.

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Hi I got this breakthrough during a 12:30 min climb with 301 watts. It would be my best values……TP 284, LTP 241. I can’t believe it. My garmin did not mention new FTP after that ride.

I find it difficult to achieve breakthroughs with longer loads. Before I reach a BT, my legs hurt so much that I have to stop. I can only achieve BTs with repeated sprints.
Is my Fitness Signature still meaningful?

breakthrough
Is it really a breakthrough when I don’t see anywhere that MPA has dropped below the current power?

The plot shows MPA with your new signature. To look at MPA with the current signature when you performed the activity click on the button named Previous right under the chart on the activity page.

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Thank you very much. I can already see it there.