516K views · 2.6K reactions | When runners don’t understand why their...

How to run efficiently ↓ Watch these two clips. ❌ In the first, I’m bouncing with every step—wasting energy going up and down. ✅ In the second, I’m running stable and smooth—channeling that energy forward. This is called vertical displacement—and the more of it you have, the more energy you lose. A simple way to test this is the “eye gaze test”: focus your eyes straight ahead while you run, and see how much your gaze bounces with each stride (another option: film yourself and review the footage)