June 14, 2023
![](https://www.letsrun.com/wp-content/uploads/2023/06/From-Norway-to-Flagstaff-1.png)
From Norway to Flagstaff: How Double Threshold Training Is Taking Over the World
What links Jakob Ingebrigtsen, the NAU cross country team, and Sebastian Coe? Double threshold training, which is having a moment in 2023. Note, this article is behind our SC paywall for 72 hours (until Saturday).