06/09/2026
Threshold and tempo get talked about as if they’re interchangeable, but they sit on different parts of the intensity map and deliver different physiological outcomes. One is a defined boundary in your physiology; the other is a style of sustained aerobic work. When you understand what each one is supposed to feel like, and what adaptation it targets, you stop guessing, stop drifting into the wrong zone, and start getting full value from both.
https://runwellington.substack.com/p/getting-threshold-and-tempo-right