Originally Posted by
mschwett
it's hard to find a full uninterrupted hour, but as an example here's one with an unweighted average power (including perhaps 5 minutes of descending, intersecting, manuevering, etc) of 224w and an NP for that time of 236w. [...] an average HR (as below) of 122 is VERY high for me, approaching maximum effort. so maybe strava's current 237w is a pretty good number.
It would be sort of surprising if Strava were using NP as part of their FTP estimation algorithm, but it does seem closer than a fixed percentage of 20 minute or 60 minute power. You know how the estimated FTP varied with window size? If you narrowed the window way down (and the FTP changes) does the max NP still come close to the new estimated FTP?