Tall guy Andrew
Level 4 Valued Member
Reading up on Zone 2 cardio, AXE, A+A, etc... I know the talk test is well established, also read other literature that advocates nasal breathing as a signal for cardio exhaustion beyond zone 2.
Have the two been compared? Nasal breathing seems easier and more intuitive, but is it a reliable indicator for zone 2?
Have the two been compared? Nasal breathing seems easier and more intuitive, but is it a reliable indicator for zone 2?