The training approach distributes running volume across two intensity zones. Approximately 80% of runs are performed at a low intensity, easily sustainable pace, while the remaining 20% are dedicated to high-intensity workouts. For instance, a runner following this methodology might complete four easy runs and one session of interval training per week in preparation for a 13.1-mile race.
This structured distribution offers multiple advantages. The emphasis on low-intensity exercise reduces the risk of overuse injuries, promotes aerobic base development, and enhances fat oxidation. Strategic inclusion of high-intensity work improves speed, running economy, and lactate threshold. While the principles are rooted in endurance training research, applying them to half-marathon preparation provides a specific framework for balancing training stress and recovery.