What does Zone 2 feel like?
What does Zone 2 feel like? While training in zone 2, you should easily be able to hold a conversation without feeling out of breath. For example, if you were speaking on the phone during the workout, the person on the other line could tell that you're exercising but not breathless.
Is it better to run in Zone 2 or 3?
Zone 2 is considered the target range for aerobic and base fitness work and should be about 60-70% of your HRmax. Zone 3 is the range for aerobic endurance work and should put you at about 70-80% of your HRmax.