What is zone 2 running?

Why is so much attention on easy training?

Easy effort is a useful place to begin when you want to try running. We built First Gear around a walk-first session, clear coaching, and permission to keep walking whenever you need to. You can start practicing without planning an elite training week.

A widely cited review described elite endurance athletes doing about 80 percent of their sessions at low intensity and about 20 percent with high-intensity work. These athletes often trained ten to thirteen times a week. ^[1]

That finding gives context to the interest in easy training. It does not require you to add a hard session or copy an elite schedule in your first week of walking and jogging.

Why does zone 2 mean different things?

In a common three-zone research model, the lowest zone sits below the first physiological threshold and zone 2 lies between thresholds. Five-zone systems divide intensity differently, and their second zone generally sits toward the easy end. ^[1]

Check the model and how its boundaries are calculated. A watch zone based on estimated heart rate is not automatically equivalent to a zone measured in a lab. Apple Watch lets you review and edit its heart-rate zones. ^[3]

First Gear uses its own coaching range. We do not label that estimate as a measurement of your physiological zone 2. The range has a practical job: helping our standard coach decide when to prompt a jog or walking break.

How can you judge an easy effort?

Use conversation as a check while you move. The CDC says moderate activity generally lets you talk but not sing, while vigorous activity makes you pause for breath after a few words. This helps you judge effort; it cannot locate a precise lactate threshold. ^[2]

If speaking comfortably becomes difficult, ease back or walk. In a First Gear session, you can take that break before your coach asks. Walking belongs in the session from the start.

Understand your heart-rate estimate

Can walking be part of zone 2 training?

Yes, depending on your fitness, speed, terrain, and the model you use. A hill can make walking demanding, so check your effort instead of assuming every walk belongs in an easy zone. ^[2]

Our first session starts with a walk and targets twenty minutes. In standard coaching, First Gear estimates a range from age and available resting heart-rate data, then uses your readings to cue jogs and walks. You get direction on your Apple Watch while keeping the choice to walk or stop.

If you report medication that slows your heart rate during setup, we use talk-test coaching instead. That mode uses available walking heart-rate data and your feedback about conversation during a jog; you choose when to jog. Follow any exercise limits your clinician gives you.

You can stay at the same stage when an advance is offered. Stages organize the program; they do not measure fitness or medical readiness. Try your first session free, with no subscription, and give yourself one simple session to follow.

See First Gear's heart-rate run/walk coaching