Originally Posted by
asgelle
How long above zone 2? 5 minutes, 1, 1 second? I go above Zone 2 for 1/10th of a second and it takes 20 minutes for metabolism to recover?
It's not measured in time, but level of effort that requires an
adaptation from your metabolism to burn more sugar than fat (again, that's by definition zones above Z 2, and why would you do 1 second high intensity anyway that doesn't make sense at all)
Read my previous post again, if you do high intensity efforts, you enter zone 3, zone 4 or more, then you are off zone 2 for a while!