Show HN: Effort Lab – Same running pace, different heart rate zones
By timmonty · 2026-07-16 · 2 points · 2 comments
https://www.motraapp.com/effort-lab
Hi HN, If you are into fitness, I hope you’ll find this interesting. I’ve been building a fitness app around a question that ordinary activity summaries and fitness apps don’t answer particularly well: “How hard did this session ask my body to work?” Imagine two friends running…
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