# Double Threshold Workouts: A Runner's Experiment
A Runner's World contributor tested double threshold workouts, a training method coached by professionals working with elite marathoners.
Double threshold workouts involve two separate hard efforts in a single session, designed to improve aerobic capacity and lactate clearance. The method gained attention from coaches training pro-level distance runners who believed runners could run faster for longer by incorporating this approach.
The contributor participated in these workouts after being convinced of their benefits by coaching staff experienced with marathoners. The training structure places stress on the body's ability to sustain effort, recover briefly, and maintain performance through a second hard push.
The experiment tracked how double threshold sessions affected the contributor's running performance and fitness development. The protocol reflects methods used in professional marathon preparation, where coaches manipulate training volume and intensity to maximize aerobic gains while building tolerance to sustained hard efforts.
The article documents the athlete's personal experience undertaking this specialized training approach rather than relying solely on traditional single-effort threshold runs. Double threshold workouts represent an advanced training methodology that separates from conventional marathon preparation, which typically emphasizes long runs and steady-state efforts.
Runners seeking to improve marathon performance often explore structured training variations developed by coaches at the elite level. This firsthand account provides insight into how one athlete implemented a specialized protocol designed to build speed and endurance simultaneously.