What type of heart rate monitor were you using to track this? The fluctuations seem pretty minor. The last 25 minutes not moving from 133 strikes me as more odd. Also, do you have a TrainingPeaks account, and could you provide a public link to the workout?
I have a HR question: recently I retested my AeT on a treadmill, so environment was controlled and consistent.
15 mins of warmup , to a sweat
First 20 min: HR goes in big waves between 125-130; up-down-up-down
Second 15 min: HR does the wave thing again, between 130-137
Last 25 min: HR settled on 133. On the dot. Not going anywhere.
Is that to be expected? I don’t understand why HR would do that.
Speed/incline were kept the same. It’s a retest, was thinking AeT could be between 125-130.
I appreciate any insight!
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