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Why Lactate Threshold Test need a chest strap ....

to get accurate readings of my heart rate variability while my HRV is measured by F255 every night? I bought a F255 because it had built in HRV monitoring... it seems even garmin has to enough confidence in it

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tmk2 over 3 years ago +1

HRV from an optical sensor is potentialy very inaccurate during high intensity workouts.

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0 tmk2 over 3 years ago

HRV from an optical sensor is potentialy very inaccurate during high intensity workouts.