27/08/2026
Most treadmill runners wait for a sharp pain before they back off. But the real sign of over-training shows up in your 'calibration' first.
If your heart rate is 5-7 BPM higher than normal during your first mile of Zone 2, your body hasn't recovered from your last session.
Pushing through today ruins next week. Make adjustments now before you start redlining.
More details and training tips packed into the Calibrated Life! Link in bio.