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  • Garmin is taunting me. Specifically aimed to keep my run today in my "Low Aerobic" zone (under 158bpm) and averaged 152bpm for a 5k. I think I had about 20 seconds at 158bpm or above in total (highest was 162bpm) and it's classed the run as "Tempo" and therefore "High Aerobic".

  • Are you sure about that 158hr suggest by MAF calculation that you are 22?

    Under that calculation 158bpm is firmly in the “grey zone” of not actually doing very much for fitness and increasing risk of injury...

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