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Zone 2 Training: The Missing Piece in Your Fitness Routine

Adam Gray-Hayward | Mar 19, 2025
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Zone 2 Training: The Missing Piece in Your Fitness Routine

When most people think about training, they think about pushing hard, breaking a sweat, and feeling exhausted by the end of a workout. That’s what we’ve been taught, right? That harder is always better. That if we’re not drenched in sweat and gasping for air, we’re not making progress.

But what if I told you that some of the most effective training happens at a much lower intensity than you might expect? That you don’t need to redline every session to get stronger, fitter, and healthier?

This is where Zone 2 training comes in—and if you’ve never heard of it before, or if you’ve been neglecting it, it’s time to pay attention. Because adding Zone 2 work into your routine could be the game-changer you didn’t even know you needed.

What Is Zone 2 Training?

Zone 2 training is a form of low-intensity steady-state (LISS) cardio that keeps your heart rate in a specific range—roughly 60-70% of your maximum heart rate (MHR). It’s the zone where your body burns fat for fuel, builds endurance, and improves heart health without overstressing your system.

To put it simply: Zone 2 is a pace you could maintain for a long time while still being able to hold a conversation. You’re working, but you’re not gasping for air. You’re moving, but you’re not exhausted. It’s a sweet spot where your body is making serious adaptations while still feeling sustainable.

If you’ve ever gone on a brisk walk, a light jog, or an easy bike ride where you felt like you could keep going for hours—you’ve probably been in Zone 2.

Why Is Zone 2 Training So Important?

In a world that glorifies high-intensity workouts, Zone 2 is often overlooked. But here’s the truth: the fittest, strongest, and most resilient people in the world spend a huge amount of time in Zone 2.

Endurance athletes, elite-level lifters, and even top-tier strength coaches all incorporate long, low-intensity work because they know what it does for their bodies:

  • It improves heart health by making your heart stronger and more efficient.
  • It builds endurance and aerobic capacity, so you don’t gas out as quickly.
  • It trains your body to burn fat for fuel instead of relying on quick sugars.
  • It improves recovery, keeping your body balanced instead of constantly stressed.

Most people don’t realize that your heart has two types of adaptations: central and peripheral.

  • High-intensity workouts (like sprints, CrossFit, or HIIT) train the heart to beat faster and harder in short bursts, but they don’t build long-term endurance.
  • Low-intensity, steady-state work (like Zone 2 training) actually strengthens your heart’s ability to pump more blood with each beat, making you more efficient at delivering oxygen to your muscles. The result? You can train harder, recover faster, and perform better—all without constantly beating up your body.

How Is Zone 2 Training Different?

One of the biggest mistakes people make is spending too much time in the "gray zone."

The gray zone is too intense to be Zone 2 but not hard enough to be true high-intensity training. This is where a lot of people get stuck—pushing moderately hard all the time but never really improving endurance or strength.

Zone 2 training forces you to slow down. And that can feel weird at first.

If you’re used to training at higher intensities, it might seem “too easy.” You might wonder if you’re even doing anything. But that’s the trick: Zone 2 is all about building a strong foundation—one that makes everything else you do better.

When you improve your aerobic base with Zone 2, you’ll notice that your HIIT workouts feel easier, your recovery is faster, and your overall endurance skyrockets.

The Benefits of Zone 2 Training

The best way to think about Zone 2 is like laying down a solid foundation for your fitness. It makes everything else stronger.

By regularly incorporating Zone 2 into your routine, you’ll notice:

  • More energy throughout the day (because your body gets better at using fat for fuel).
  • Easier recovery from workouts (because you’re improving circulation and oxygen delivery).
  • Better endurance (whether you’re running, lifting, or just chasing after your kids).
  • A stronger heart (lower resting heart rate, better blood flow, and reduced stress on your system).

It’s not flashy. It’s not high-adrenaline. But it’s one of the most important things you can do for long-term health and fitness.

How to Incorporate Zone 2 Training Into Your Routine

The best part? Zone 2 training is simple.

You don’t need fancy equipment. You don’t need complicated programming. You just need consistency.

The easiest way to get started is by adding 2-3 sessions per week of low-intensity cardio like:

  • Brisk walking
  • Cycling at an easy pace
  • Light jogging
  • Rowing or swimming at a comfortable pace

You’ll know you’re in Zone 2 if you can hold a conversation without gasping for air. If you’re breathing too hard to talk, you’re probably going too fast.

A good starting point is 30-45 minutes per session, building up over time. Some endurance athletes spend several hours per week in Zone 2, but even a couple of sessions will make a big difference.

The Bottom Line

If you’re serious about improving your fitness, don’t skip Zone 2 training. It’s the foundation that supports everything else—your strength, endurance, recovery, and even your fat loss.

It might not be the most intense workout in the moment, but the benefits stack up over time. And that’s the key—long-term progress over short-term exhaustion.

So, next time you lace up your shoes and head out for a workout, slow down a little. Stay in that comfortable-but-working zone. Build that base. And watch how much stronger, fitter, and healthier you become.

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