LTHR sanity check
(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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