Calculating LTHR

Training
4

80-90% LTHR is pretty much my Friel zone2 HR:

image

And yes, the Friel zone2 HR is wider than Coggan zone2 HR.

I’ve never used HRmax to calculate zones.

Also, the TrainingPeaks support article on thresholds states:

  • Heart Rate Threshold - All Sports: We suggest a threshold increase if your peak 60 minute, or 95% of your Peak 20 Minute, Heart Rate is greater than your currently set threshold.
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