Lab test has threshold in zone Y?


Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
  • #9242

    Hello brain trust!
    First time poster and newbie to training with metrics. I bought a sports watch and got a lab test for running which says my VT2 is 167 BPM with a threshold range of 167-177 BPM.
    The 80/20 book suggests that 167-170 is in zone Y and to be avoided:
    Z3 = 159-167
    ZY = 167-170
    Z4 = 170-175

    So I have a lab test suggesting I work in this zone and the book says to avoid it. It’s only 3 BPM of variance.
    I’m a simple beast and a bit confused. Can anyone help? Thanks in advance.

    David Warden


    Thanks for joining us!

    Zone Y is not as problematic as Zone X. Zone X really should be avoided for most of training, but we added Zone Y to encourage athletes to commit. It’s part of our philosophy of polarization of high intensity. We think that you should commit to either longer periods of Zone 3 (5-12 minutes) or much shorter but harder periods of Zone 4 and 5. So, Zone Y is not bad, it’s really good. Just not as good as deciding to use the other zones.



    Thanks for the explanation David, I’ve enjoyed reading your book.

Viewing 3 posts - 1 through 3 (of 3 total)
  • You must be logged in to reply to this topic.
Posted in