Road running36:09 3.99 mi (9:04 / mi) +72m8:35 / mi ahr:117 max:155 shoes: Ravenna 11
Easy run. When my HR read 140, I did a quick manual check: 100. It ran up to over 150: still 100 IRL. This nonsense took up the first third of my run. I believe the feedback and advice that Garmin gives you is good, but not if the inputs to its algorithms are bogus. GIGO.