The results were covered in this recent article https://www.economist.com/science-and-technology/2025/12/26/what-is-the-best-way-to-train-for-a-marathon https:/

The results were covered in this recent article https://www.economist.com/science-and-technology/2025/12/26/what-is-the-best-way-to-train-for-a-marathon https://www.economist.com/science-and-technology/2025/12/26/...