Table 6.
Nunan et al. (17) short-term norms.
| HRV measure | Mean (SD) | Range | Studies |
|---|---|---|---|
| IBI (ms) | 926 (90) | 785–1,160 | 30 |
| SDNN (ms) | 50 (16) | 32–93 | 27 |
| RMSSD (ms) | 42 (15) | 19–75 | 15 |
| LF (ms2) | 519 (291) | 193–1,009 | 35 |
| LF (nu) | 52 (10) | 30–65 | 29 |
| HF (ms2) | 657 (777) | 83–3,630 | 36 |
| HF (nu) | 40 (10) | 16–60 | 30 |
| LF/HF (ms2) | 2.8 (2.6) | 1.1–11.6 | 25 |
IBI, interbeat interval; SDNN, standard deviation of NN intervals; RMSSD, root mean square of successive RR interval differences; LF ms2, absolute power of the low-frequency band; LF nu, relative power of the low-frequency band in normal units; HF ms2, absolute power of the high-frequency band; HF nu, relative power of the high-frequency band in normal units; LF/HF, ratio of LF-to-HF power.
Reproduced with permission of John Wiley and Sons.