| Max Heart Rate in BPM: |
| Zone | Phase | Range BPM | ||
| 50-61% | Beginner | - |
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| 61-70% | Weight Loss | - |
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| 71-80% | Endurance/Strength | - |
||
| 81-85% | Strength/Long hills | - |
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| 86-90% | Intervals | - |
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| 91-100% | Short Dist Speed | - |
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| Calculation based upon the Karvonen method. aka The Heart Rate Reserve (HRR) Formula. | Karvonen, M.J., Kentala, E. and Mustala, O. The effects of training on heart rate: a longitudinal study. Ann Med Exper Fenn 1957;35(3):307-315. | |||