https://fitpulse.site/ Heart rate zone training log en-us Tue, 19 May 2026 04:00:00 -0000 https://fitpulse.site/blog/hrv-resting-hr.html https://fitpulse.site/blog/hrv-resting-hr.html Wed, 08 Apr 2026 04:00:00 -0000 Both heart rate variability and resting heart rate are useful recovery metrics but they measure different things and respond differently to stressors. I track both in FitPulse and have developed a rou... https://fitpulse.site/blog/zone-2-why.html https://fitpulse.site/blog/zone-2-why.html Mon, 29 Sep 2025 04:00:00 -0000 I spent two years training mostly in Zone 3-4 — the "comfortable but breathing hard" range that feels productive but isn't. My running pace improved slowly, my recovery between sessions was poor, and ...