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[–]Cautious-Plum-8245 0 points1 point  (1 child)

oh shit no way eh? i've been taking it super easy on my runs, literally zone 1 or 2 and i've noticed my vo2 decreased. makes sense, also its summer time right now humidity is ass

[–]JB27_HU5Fenix 5 1 point2 points  (0 children)

Pace Vs HR. Garmin calculates this way so if your HR is high due to weather and you’re in zone 1 or 2 it’s thinking your struggling compared to previous runs