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Division of the intensity of physical effort depending on the achieved heart rate.
| Intensity | ||||||
|---|---|---|---|---|---|---|
| Very low | Low | Medium | High | Very high | Maximum | |
| %HRmax | <35 | 35–59 | 60–79 | 80–89 | >90 | 100 |
Kozłowski S, Nazar K. Introduction to clinical physiology. PZWL 1995.
