LTHR sanity check

New Runner Advice

(25m) I’ve been running for a couple of months and decided to do this Joe Friel field test I’ve seen discussed a lot. My LTHR of 194 seems very high. The run was measured with a polar H9 strap. Max HR is 204.

Data from last 20 mins of field test:

Lap time (1km) | avg HR

5:01 | 193 bpm

4:59 | 193 bpm

4:55 | 195 bpm

4:44 | 196 bpm

0:21 | 197 bpm

Does this seem accurate?

Posted Apr 9, 2026, 7:52 PM UTC

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