These are the values configured in Nyxova’s HRV calculator. An exact source table or derivation has not been documented here, so the numbers should not be treated as verified population percentiles.
| Age | Anchor 10 | Anchor 25 | Anchor 50 | Anchor 75 | Anchor 90 |
|---|---|---|---|---|---|
| 18–25 | 28 | 38 | 55 | 70 | 85 |
| 26–35 | 22 | 32 | 48 | 62 | 75 |
| 36–45 | 18 | 27 | 40 | 53 | 65 |
| 46–55 | 14 | 22 | 33 | 44 | 55 |
| 56–65 | 11 | 18 | 28 | 37 | 46 |
| 66+ | 8 | 14 | 22 | 31 | 38 |
| Age | Anchor 10 | Anchor 25 | Anchor 50 | Anchor 75 | Anchor 90 |
|---|---|---|---|---|---|
| 18–25 | 30 | 42 | 60 | 76 | 90 |
| 26–35 | 24 | 35 | 52 | 66 | 80 |
| 36–45 | 19 | 29 | 43 | 57 | 68 |
| 46–55 | 15 | 24 | 36 | 48 | 58 |
| 56–65 | 12 | 19 | 30 | 40 | 48 |
| 66+ | 9 | 15 | 24 | 32 | 40 |
Previously cited background: Shaffer & Ginsberg (2017); Altini & Kinnunen (2021). These citations are not a documented derivation of the exact table values. RMSSD values are in milliseconds.