Heart Rate
Zones, thresholds, drift — and how to use them.
Everything from finding your zones to interpreting HR drift on long runs.
- Pillar12 min read
The Complete Guide to Zone 2 Running
Zone 2 is the most-talked-about, least-understood training zone in endurance running. Here is what it actually is, how to find yours, and why most runners get it wrong.
- 6 min read
How to Calculate Your Zone 2 Heart Rate
Four practical ways to find your Zone 2 — from a 20-minute test you can do this weekend to the gold-standard lactate test.
- 5 min read
5 Common Zone 2 Mistakes (and How to Fix Them)
Zone 2 is simple in principle and easy to get wrong in practice. These are the five mistakes we see most often.
- Pillar14 min read
The Complete Guide to Heart Rate Training
Heart rate is the single best window into how hard your body is actually working. Here is how to use it — and when to ignore it.
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