In this episode of The Trail Running Briefing, we explore one of the most important but misunderstood ideas in endurance training: you often run faster by slowing down more often. Many runners make the mistake of pushing too hard on easy days, turning most of their training into moderate effort and limiting recovery, consistency, and performance. This episode explains why truly easy running is essential for building aerobic fitness, supporting recovery, and preparing you to perform better in key sessions and races. The message is simple: easy runs should feel easy, and that discipline is often what leads to long-term progress.

Key references:

• Seiler S. (2010). What is Best Practice for Training Intensity and Duration Distribution in Endurance Athletes?
• Esteve-Lanao J, San Juan AF, Earnest CP, Foster C, Lucia A. (2007). How Do Endurance Runners Actually Train? Relationship with Competition Performance.
• Stöggl T, Sperlich B. (2014). Polarized Training Has Greater Impact on Key Endurance Variables than Threshold, High Intensity, or High Volume Training.
• Neal CM, Hunter AM, Galloway SDR. (2013). Six Weeks of a Polarized Training-Intensity Distribution Leads to Greater Physiological and Performance Adaptations than a Threshold Model in Trained Cyclists.
• Rosenblat MA, Perrotta AS, Vicenzino B. (2019). Polarized vs. Threshold Training Intensity Distribution on Endurance Sport Performance: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
• Casado A, González-Mohíno F, González-Ravé JM, Foster C. (2022). Training Periodization, Methods, Intensity Distribution, and Volume in Highly Trained and Elite Distance Runners: A Systematic Review.
• Haugen T, Sandbakk Ø, Enoksen E, Tønnessen E, Seiler S. (2022). The Training Characteristics of World-Class Distance Runners: An Integration of Scientific Literature and Results-Proven Practice.