The Distance Dr: In Practice

Can you actually predict if you’re going to hit the wall in a marathon? 🧠💛

In this episode, Nick and Kate unpack a new study that analysed wearable biomechanics data from over 1,400 marathon runners to see whether early-race running form patterns were linked to severe late-race pace collapse.

We break down what this study actually shows, what it doesn’t, and how runners and coaches should (and shouldn’t) interpret it.

If you’ve ever wondered why the wall feels like it comes out of nowhere, then this one’s for you.

📚 Study name: Early marathon running metrics from inertial measurement units predict significant pace reduction
📚 Study link: https://pmc.ncbi.nlm.nih.gov/articles/PMC12575221/

⏱️ Episode timestamps

 0:00 Intro
 3:38 Study aim
 5:20 Methods
 9:06 Defining “hitting the wall”
 15:39 Results
 20:13 Key biomechanical variables
 29:00 Summary
 32:50 Limitations
 38:30 Practical use for athletes & coaches
 42:00 Correction
 50:40 Quick rundown