I am one of the rare people that like a lower FTP. Training always feels a little easier then!!
I have just signed up as a trial user so have imported the last 3 months of data. Within this time there have been a few max efforts, so I believe the data set should be good.
The Zwift Ramp test has given me an FTP of 338 watts. This is somewhere close to my 8/9 minute PB. From feel and shorter time trials I estimate my FTP to be 305-310 watts. Inetrvals.icu calculated 308 Watts and Zwift calculated 313 (Based on last minute of 417w)
During the Ramp test I did set a new 5 minute power best, averaging 380 watts over the last 5 minutes.
The 6 minute and Peak power looks spot on, on my signature.
Any ideas on the best way to proceed to enable an achievable plan?
You can flag that activity to remove the signature calculation while retaining the strain score.
Xert’s method of determining TP and your calculated power curve does not rely on MMP values or traditional methods of estimating FTP. That is one of the paradigm shifts in Xert’s approach.
Check out these threads for details – Search results for ‘“RAMP test”’ - Xert Community Forum
TL;DR You can manipulate your signature if certain tests and activities result in values you don’t feel are viable. Xert provides tools to do that.
Xert will estimate all three of your signature values to establish your entire power duration relationship. Ideally, the relationship between all three can be established from your historical data (usually requires a few breakthrough rides to provide the algorithm information on this relationship). If you just go with a single ramp test, that relationship isn’t established unfortunately since it’s a test protocol and not a natural expression of fatigue, recovery and attempts at different intensities that you’d see during a race, for example.
The signature could very well be right, but if your PP is good, you might want to examine the HIE value which is quite low for an athlete with TP over 300. Raising this value, will lower your TP to identify the single breakthrough at the end of the ramp test. Simple clicking the Extract button might work, or you might want to lower TP and increase HIE before clicking that button. If you’re stuck, reach out to support who can help with this.
