This is one of the most common questions I get from runners. So today I’m going to take a deeper dive into Zone 2 running. We’ll talk about what Zone 2 running is, why it’s important and how to make sure you’re doing it right so that you can improve your race performance.

Zone 2 usually refers to a running intensity that focuses on developing the aerobic system. Runners often refer to this as the “aerobic base” and training that focuses on it as “base building”.

Zone 2 running is easy; while running, you should be able to speak clearly, in full sentences. It’s a running intensity that you could sustain for a long time.

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