The idea that roughly 80% of training should be lower to moderate intensity and ~20% higher intensity is often referred to as the “80/20 rule.” It’s not a ...

Hard workouts get the attention. They feel productive. They’re memorable. They leave you tired and accomplished. But most of the long-term aerobic engine ...

Long slow distance (LSD) training is often thought of as “just endurance work.” But one of its most powerful benefits isn’t speed or race performance — it’...

Aerobic fitness doesn’t change overnight. It builds gradually through repeated exposure to the right kind of stress — mainly consistent, low to moderate in...

Hard workouts feel productive. They’re sweaty. They’re uncomfortable. They leave you tired. Because of that, many people assume high intensity is what ...

High-intensity interval training (HIIT) is popular for a reason. It’s time-efficient, challenging, and can drive rapid improvements in performance. But w...

One of the clearest signs of improved aerobic fitness is a lower resting heart rate. This doesn’t happen overnight. It happens gradually as your body becom...

You head out for a steady run or ride at a consistent pace or power. But as time goes on, your heart rate keeps creeping up — even though your speed hasn’t...

Fasted cardio is often promoted for fat loss and metabolic benefits. And in some situations, it can be useful. But from a nervous system and recovery stan...

One of the most common mistakes in cardio training is doing the exact same workouts every week. Same pace.  Same duration.  Same intervals.  Month after mo...