As a general rule, my understanding is that you wonât have the most accurate breakthrough when you stop the effort artificially, either because of timer or the end of a road.
It was 3 days ago. Anyway l have just 3 months data in Xert and l didnât do any maximal effort lately so l think my fitness signatures will be somewhat noisy for a while
Definitely a signature correction, more than a breakthrough, per sae. If you havenât really pushed yourself in the way that the SMART - Harder to Breathe workout pushes you, then itâs possible for Xert to have underestimated your signature.
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Itâs been a long time since I had a gold breakthrough and when it came it was a big one.
Out with the cycling group for a quick ride. I hung on for 45 minutes and was then dropped and the way home was slower but still at a steady pace. The peaks are when I was getting to the front of the paceline and then staying there.
It was a real VO2 workout
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One way to get faster is to ride with faster riders 
Great ride @johnnybike and congrats on the Breakthrough!
Suddenly got a BT in a zwift race? Not expected thatâŠStrange :-p. TP +11W after digging towards the finish.
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Thanks Scott. At aged 67 I do find most are faster than me anyway 
This was cool in that I didnât think my Sig was correct, and then my 10m power prediction was actually spot on. That only makes me more confident in the TP prediction, even if it feels high.
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Thought I would try a short 150 metre climb - Nick OâPendle, Lancashire, UK as a warm up before my main FulGaz ride.
Started steady and just kept on going.
45 seconds improvement for a PB and a silver BT
I was ruined for the main ride though.
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PP and HIE both seem a little low and TP seems exaggerated. Iâm not really up for a doing a max long effort to validate. What type of workouts really expose a too-low HIE?
Rides with less structure and repeated efforts to your limit will express your numbers best. Remember that if you come close to your limit and then back off, the system will think that was maximal and you may end up with a fakethrough. If youâre close, push all the way and hold for best results.
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Yeah, my ride is a bit misleading. It started with Ronnestad-ish efforts and then the last couple where I MPAâd, I was maxed, but I had to let off a bit before each. Iâll go again in the coming couple of weeks where Iâve got plenty of runway. Maximal effort on the new sig was 18 seconds. One the old sig is was 1:03. Is it the âoldâ sig where weâre shooting for over 60 seconds for a âgoodâ BT, or 60 on the new sig?
Shouldnât matter as long as you donât hold back and hold it for a few seconds at least.
Got it. Definitely went to failure, so I wonât overthink it.
If you just thought your HI work was well done for the day, MPA is recovering, muscles stop to hurt âŠwhen a random rider shows up out of nothing from behind and starts attackingâŠ
Hereâs one thatâs fun but Iâll flag it. Will be flagged because itâs outdoors and I canât do this indoors, so my workouts would be crazy hard, also flagging because I donât think a 5 min effort really justifies a 10% TP increase. However, after a very light week where I felt ugh on the bike, I thought Iâd have a bash at this short climb, assuming Iâd be very fresh
Although Iâm going to flag it, my focus is 5-8min power, so doing such a good effort 3 weeks from the end of my training proram/period is pleasing. This has my 8 min power at almost 10% above what the forecast target was⊠I just need to be able to replicate this indoors and I might win some Zwift races.
Posting this BT as it looks a bit like @eeney 's
as you notice the BT is affecting PP and TP, but not HIE. Iâve seen this before and I know the TP increase isnât correct - too me it seems like there is a bias for TP adjustments rather than HIE. It was a great ride though and instead of flagging it, I will reduce TP and add some HIE as I recently has been doing a great deal of Z6+7 work.
btw - this isnât a stale signature, I usually have a BT every thursday while playing the Zwift game, previous BTs also showed a TP bias, but not to the extend seen here.
btw2 - any good ways of addressing/checking the HIE value? Intervals had my w-bal in the 30k area for this ride, a while HIE and w-bal isnât exactly the same a difference of 13k is a bit off
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