Hello, this is a feature request / physiology question. I’m wondering if an FTP interval workout can be used to generate an estimated TTE at FTP; if so, maybe this could be a secondary TTE field.
To explain what I have in mind, I’ll use recent 3x15 at FTP workout of my own (see screenshot attached).
-
In the first interval, my HR peaked at 173. Count that as 15 minutes.
-
In the second interval, my heart rate reached 173 after about 5 minutes, and then eventually climbed to 180. Count that as 15 - 5 = 10 minutes, since the internal physiological state (173 HR) after 5 minutes was comparable to the state at the end of the first interval.
-
In the third interval, HR returned to 180 after about 5 minutes (ignoring spikes), so add another 15 - 5 = 10.
By this method, the TTE estimate would be 15 + 10 + 10 = 35 minutes. This sounds reasonable to me. Of course, doing 35 minutes straight through might be mentally tougher since you don’t get a break; on the other hand, one might rise to the occasion knowing it’s a test rather than a workout.
I’m curious to hear how people feel about this as an estimate of TTE, and if it could be coded into intervals.icu as a new feature.
(Separate question: if my lactate threshold heart rate is around 178-180, does this sound like a correctly calibrated threshold workout?)