My watch can divide a run into tidy coloured zones. The untidy question is whether those zones describe me. Here’s how I used a field baseline, RPE, breathing and later runs to create provisional numbers without pretending they’re laboratory results.
Heart Rate Zones for Runners Over 50: Why Mine Are Provisional Read Post »
Experiment
A Garmin activity summary shows the result. The FIT file holds the timeline underneath it. Here’s what that file can tell an AI running coach, what it can’t know, and why the runner’s own report still matters.
What Is a Garmin FIT File? The Runner Behind the Summary Read Post »
AI Running Coach Experiment, Running After 50: Testing & DataI recently wrapped up a 120-minute treadmill run that was, by all accounts, a success. I felt energized, fueled, and strong from start to finish. But something curious lingered in my post-run reflection: while my heart rate data suggested I was working above Zone 2 for extended stretches, I was able to comfortably breathe through
Are My Heart Rate Zones Wrong? A Nose-Breathing Experiment Read Post »
Heart Rate Training, Self-Experimentation, Zone 2 Running