Last updated: 3 August 2026
Reviewed by Jordan Makin, FA Level 2 Football Coach
HR training zones
Top picks compared
| Pick | Product | Best for | |
|---|---|---|---|
| Top pick | Polar H10 Heart Rate Monitor | The most accurate chest-strap HR monitor for zone-based running. | Check price → |
| Option | Garmin Fenix Running Watch | Advanced multisport watch with VO2 max, training load and HR zones. | Check price → |
| Option | 80/20 Running (Book) | Matt Fitzgerald's zone-based training guide. The science behind easy running. | Check price → |
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Frequently asked questions
How do I find my max heart rate?
220 minus age is the rough estimate (±10-15 bpm individual variation). More accurately: run a 5K all-out and note the highest reading in the final kilometre, or do a maximal uphill interval. A lab VO2 max test gives the most accurate result.
What is LTHR?
Lactate threshold heart rate — the HR at which blood lactate begins to accumulate rapidly. It's typically 80-90% of max HR for trained runners. A 30-minute all-out time trial average HR is a common field test estimate for LTHR.