Hi,
I did a long (1:13 h) FTP test on Zwift with Kickr Core as a trainer.
My setup is as follows:
|- BT -> Zwift
Kickr Core |
|- ANT+ -> FR945 -> Connect -> TrainingPeaks
I start the bike activity separately on FR945 to have the training status calculated.
When I finished the Zwift test and stoped the ride on the watch I was asked to accept the new FTP value of 203W however Zwift has presented the 221W.
I would have not been surprised if not TrainingPeaks which reported the new FTP of 221W out of the same activity.
Second, the ride power stats present in Connect for Max Avg Power (20 min) is 233 W.
The value multiplied by 0.95 is 221W - according to https://help.trainingpeaks.com/hc/en-us/articles/204071934-How-to-Calculate-Threshold-Power-Heart-Rate-or-Pace.
The question is how does the FR945 calculate FTP and why is it different than two other platforms?
I would appreciate an explanation.
Thanks in advance
Igor