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Thread: Indoor vs Outdoor

  1. #1
    Join Date
    Dec 2012
    Location
    Calgary, AB
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    Default Indoor vs Outdoor

    When I was home at Christmas (at sea level) my brothers and I rode outside once, and my NP was 235 watts, which is pretty much bang on my FTP (we tend to have at each other;-)

    Fast forward 2 weeks and I'm home (1300m above sea level) do an FTP test on Zwift, and it tells me 210w. Heart rates were pretty much the same (165bpm-ish).

    Does this smell right?

    Larry
    Larry Sampson

    "Donít buy upgrades, ride up grades."
    Eddy Merckx

  2. #2
    Join Date
    May 2008
    Location
    DC
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    Default Re: Indoor vs Outdoor

    Not out of the question. Often indoor testing gives different results. I've seen 20 to 30 watts variances from what was expected.
    Use the indoor numbers for indoor training and outdoor for outdoor.

    Quote Originally Posted by LarryA View Post
    When I was home at Christmas (at sea level) my brothers and I rode outside once, and my NP was 235 watts, which is pretty much bang on my FTP (we tend to have at each other;-)

    Fast forward 2 weeks and I'm home (1300m above sea level) do an FTP test on Zwift, and it tells me 210w. Heart rates were pretty much the same (165bpm-ish).

    Does this smell right?

    Larry

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