Should I follow HR or Pace? | 80/20 Endurance

Should I follow HR or Pace?

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  • #11120
    mtlewellen1
    Participant

    Was getting some separation between my HR and Pace on Z2 runs. My pace was the same, but when running with a new person I found my HR was elevated to Z3, while pace stayed in Z2. Should I count this as Z2 or Z3?

    #11124
    Matt Fitzgerald
    Moderator

    Count it as Zone 2. Heart rate can be influenced by a lot of factors other than actual exercise intensity. In this case, you were probably just super excited about your new training partner!

    #11125
    mtlewellen1
    Participant

    Thanks! If this kind of zone separation continues, should I retest my zones?

    #11126
    Matt Fitzgerald
    Moderator

    It’s probably unlikely to continue unless your fitness level is going DOWN rather than up. When fitness is increasing, athletes tend to find that they run faster at the same HR. Exhibiting a higher HR at the same pace is more likely just noise. If you have reason to believe that your fitness is in fact improving (e.g., lower RPE at any given pace), then retesting is in order.

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