Practical Training

How to Build a Zone 2 Training Plan: Weekly Structure for Beginners

How to Build a Zone 2 Training Plan: Weekly Str...

A useful zone 2 training plan is less about exotic workouts than about repeating the right metabolic stimulus often enough that your body adapts. For beginners, that usually means a...

How to Build a Zone 2 Training Plan: Weekly Str...

A useful zone 2 training plan is less about exotic workouts than about repeating the right metabolic stimulus often enough that your body adapts. For beginners, that usually means a...

How to Know You're Actually in Zone 2 (Without a Lab)

How to Know You're Actually in Zone 2 (Without ...

Most endurance athletes do not have a metabolic cart in the garage. They still need a reliable way to answer a simple question on easy days: am I actually in...

How to Know You're Actually in Zone 2 (Without ...

Most endurance athletes do not have a metabolic cart in the garage. They still need a reliable way to answer a simple question on easy days: am I actually in...

Pacing for Ultra Events: How Durability Translates to Race Day

Pacing for Ultra Events: How Durability Transla...

Most pacing advice is built for races that finish before your physiology starts falling apart. A 5K finishes before substrate shift matters. A marathon finishes around the time durability becomes...

Pacing for Ultra Events: How Durability Transla...

Most pacing advice is built for races that finish before your physiology starts falling apart. A 5K finishes before substrate shift matters. A marathon finishes around the time durability becomes...

Power vs Heart Rate vs Breathing: What Should You Trust?

Power vs Heart Rate vs Breathing: What Should Y...

For a long time, endurance athletes have relied on external and internal metrics such as power and heart rate to guide training intensity. These tools have become standard, particularly in...

Power vs Heart Rate vs Breathing: What Should Y...

For a long time, endurance athletes have relied on external and internal metrics such as power and heart rate to guide training intensity. These tools have become standard, particularly in...

Trail runner running down hill, blue sky in background

Polarized Training: The 80/20 Rule, Explained

  For a long time, it has been a standard training practice in the elite endurance world to use thresholds to guide workout intensity. Most elite athletes know the exact...

Polarized Training: The 80/20 Rule, Explained

  For a long time, it has been a standard training practice in the elite endurance world to use thresholds to guide workout intensity. Most elite athletes know the exact...

The Importance of Accurate Thresholds

The Importance of Accurate Thresholds

Polar's Sport Tester PE 2000 came out in 1982 and since then heart rate has been the standard measurement of intensity along with speed for endurance exercise (1). It has proven to be a...

The Importance of Accurate Thresholds

Polar's Sport Tester PE 2000 came out in 1982 and since then heart rate has been the standard measurement of intensity along with speed for endurance exercise (1). It has proven to be a...