Originally Posted by
terrymorse
I think you can see this "exercise intensity" weighting factor in my EF graph. There's a substantial "jump" in 2021 and 2022, after the early season ramp-up, which I suspect matches up with my switch-over to higher intensity rides. See the red arrow jumps:
No "jump" so far in 2023--just a steady-ramping up--as I haven't yet started doing higher intensity rides.
I guess a really smart EF would exclude all of the LT/anaerobic efforts in every ride, calculating EF on just the fully aerobic segments.
That's pretty damn cool.
I suspect that even if you were looking at un-normalized power, you'd still see a trend, just not as sudden a jump. I think there may be some changes due to stroke volume (though I'd sorta kinda be surprised if LVEF were changing that much) but I also suspect that increasing "efficiency factor" also reflects changes in mitochondrial density. But while I think it does reveal something going on, I'm still uncertain how to use this information day-to-day. It's descriptive but not prescriptive so you can use it to monitor progress but not to tell you what to do next.