graphic interpreting polarized training method as 80/20 mix of intensities, from green to yellow/red

The Science Behind Polarized Training 

Polarized training is a case where science hustled to catch up with real-world results. Coach Trevor Connor explains how sport science misunderstood the physiology and inadvertently shifted the focus toward high-intensity training.

Polarized Training 3 zone model with lactate thresholds

Polarized training is a case where science hustled to catch up with real-world results. Coach Trevor Connor explains how sport science misunderstood the physiology and inadvertently shifted the focus toward high-intensity training.