Subject: RE: Vo2 Max declining, why? My Garmin 520 will give me really long "recovery times" after a workout if average heart rate was notably higher or lower than average (for me ) for a given average power. Case in point: Yesterday, my HR monitor malfunctioned (possibly a battery issue; it's been getting less and less reliable and losing the signal a lot recently ). It just kept creeping around in the 80's despite a moderately intense workout when I was feeling pretty strong, jumped once to something more reasonable (133 ) then back down to 80's. I took it off about 20 minutes into a 2 hour ride as the data was useless. It then decided my average HR for the 2-hour ride at just below HIM watts had been 88, and I therefore needed 72 hours of recovery!
But if you HAVE been ill recently, and/or fatigued from training, travel, or other life stress, and the Garmin picks up a legit variation in HR at a given pace or power level (so-called VO2 max and recovery time are really proxies for that ), might be good to take it easy for a few days. Edited by Hot Runner 2019-06-24 4:37 PM
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