Table 1.
Standard HRV parameters.
| Pre Alc | Max Alc | Post Alc | p-value Pre vs. max |
p-value Max. vs. post |
p-value Pre vs. post |
|
|---|---|---|---|---|---|---|
| SDNN, ms | 62.4 (50.2–70.5) | 51.8 (44.2–63.4) | 59.9 (47.1–66.1) | 0.326 | 1.000 | 0.135 |
| RMSSD, ms | 39.6 (33.0–50.4) | 24.7 (17.3–37.6) | 28.3 (22.2–31.5) | 0.005 | 0.583 | 0.005 |
| LF, ms2 | 771.7 (529.5–1239.6) | 620.6 (276.2–987.6) | 724.2 (479.4–1252.8) | 0.030 | 0.119 | 0.358 |
| HF, ms2 | 436.1 (192.1–965.8) | 181.4 (52.5–423.3) | 173.4 (125.8–288.7) | 0.009 | 1.000 | 0.002 |
| LF/HF ratio | 1.71 (1.29–4.61) | 3.26 (1.74–5.19) | 3.22 (2.00–5.83) | 0.326 | 0.279 | 0.002 |
N = 15 for all experiments and analyses. Differences were tested by the Wilcoxon signed-rank test.
HRV heart rate variability, SDNN standard deviation of NN intervals, RMSSD root mean square of successive differences, LF low frequency, HF high frequency, Pre Alc before alcohol intake, Max Alc maximum blood alcohol concentration, Post Alc after alcohol intake.