The Double Threshold Divide: Elite Science vs. Amateur Risk
The “Ingebrigtsen method” has sparked a global conversation about the limits of human endurance and recovery. At the heart of this debate is the double threshold—the practice of completing two threshold sessions in a single day to maximize aerobic volume without the exhaustive fatigue of a single, massive workout.
For elite athletes like Andreas Almgren, this approach has been transformative. Almgren, who has secured a European Record of 12:44.27 in the 5,000m and a Swedish Record of 26:52 in the 10,000m, credits this specific training shift with saving his career and providing a way out of chronic injury problems.

However, the trend of amateurs attempting to mimic these elite protocols is meeting a stern warning from the architect himself. Gjert Ingebrigtsen, the coach behind Jakob, Henrik, and Filip Ingebrigtsen, asserts that this high-intensity volume is not a universal blueprint.
The distinction lies in the foundation. Ingebrigtsen emphasizes that athletes like Almgren can handle such loads due to the fact that they have “gone all the steps,” training rigorously since the age of 10 to 12. For those without a decade of elite aerobic priming, the risk of a “huge crash” outweighs the potential gains.
From Shattered Bones to World Records: The Art of Athlete Reinvention
The evolution of Andreas Almgren serves as a case study in athletic reinvention. Almgren’s early career was defined by middle-distance speed, highlighted by a 1:45.59 in the 800m. However, a cascade of devastating injuries—including torn muscles and stress fractures—nearly forced him out of the sport.
The shift toward the Ingebrigtsen method represented a “180-degree turn” in his philosophy. By trading middle-distance intervals for a combination of long runs, double thresholds, and five-hour bike weeks, Almgren transformed his physical identity.
The results of this systemic change are evident in his diverse record book:
- 1,500m: 3:32.00 (Swedish Record)
- 5,000m: 12:44.27 (European Record)
- 10,000m (Road): 26:53 (European Record)
- Half Marathon: 59:23 (First Swede under 60 minutes)
This trajectory suggests a future trend where athletes facing injury plateaus may appear toward high-volume, controlled-intensity aerobic work rather than traditional high-impact speed training to rediscover their peak performance.
The Danger of “Improving” a Winning System
As the Ingebrigtsen method becomes more widely analyzed, there is a growing temptation for athletes to tweak the system for “better” results. However, Gjert Ingebrigtsen warns that the system is a precise science.
In a recent discussion on the Spring Snyggt – med Jesus och Manne podcast, Ingebrigtsen specifically mentioned that Almgren was among those who tried to “improve” his system. The coach’s verdict was blunt: “It doesn’t work.”
This highlights a critical tension in modern sports science: the balance between individualization and systemic discipline. Although Almgren remains one of the world’s best, Ingebrigtsen argues that the core tenets of his method should not be altered if the goal is to avoid physical collapse.
Currently, this philosophy is being applied through Viking Athletics, where Ingebrigtsen guides a roster of elite talent including Narve Gilje Nordås, Per Svela, Kieran Lumb, and Jose Carlos Pinto.
FAQ: Understanding the Ingebrigtsen Method
What is double threshold training?
Double threshold training involves performing two separate threshold workouts within a single day to increase the total volume of training at a specific intensity without overtaxing the body.
Can amateur runners use the double threshold method?
Gjert Ingebrigtsen advises against it for recreational or semi-professional runners, particularly those over 32 years old training for long-distance events like marathons.
How did Andreas Almgren use this method to recover from injury?
Almgren shifted his focus from middle-distance intervals to a regimen of double thresholds, long runs, and low-impact bike work, which he credits with saving his career and resolving his injury issues.
Who are the primary athletes currently using this system?
The system has been used by Jakob, Henrik, and Filip Ingebrigtsen, as well as Andreas Almgren and the athletes of Viking Athletics, such as Narve Gilje Nordås.
Do you believe the “Ingebrigtsen method” is the future of distance running, or is it too risky for the average athlete? Share your thoughts in the comments below or subscribe to our newsletter for more deep dives into elite performance.
