Training Articles

Elite marathon runners spend 80% of training time running easy. Discover the science behind polarized training and why most recreational runners run their easy days too fast.

These short bursts of controlled speed work might seem simple, but science shows they're one of the most effective tools for improving running economy, form, and performance—without the fatigue of traditional speed workouts.

Discover the scientifically-proven nutritional strategies that fuel marathon success, from daily fueling to race-day nutrition and everything in between.

Discover the science behind Long Slow Distance runs and why these foundational workouts are essential for marathon success, aerobic development, and injury prevention.

Learn what lactate threshold is, why it's crucial for marathon performance, and how to train it effectively for faster race times.

Discover how training with heart rate zones can optimize your marathon preparation, prevent overtraining, and ensure you're working at the right intensities for maximum performance gains.

Discover how Fartlek—Swedish for 'speed play'—combines structured intensity with creative freedom to build speed, endurance, and mental resilience for marathon racing.

Learn what running cadence is, why it matters for marathon performance, and how to optimize your step rate for efficiency and injury prevention.

Discover what VO₂max is, why it matters for marathoners, and how to improve it for race-day performance.