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Table 3 Mean and standard-deviation for time-domain indices between before and after the orthostatic test

From: Fractal correlation property of heart rate variability in response to the postural change maneuver in healthy women

Index Control 0-5 min 5-10 min 10-15 min p
LF (ms2) 791 ± 460 611 ± 232 635 ± 340 *500.1 ± 243 0.032
HF (ms2) 595.5 ± 621 291 ± 300 203 ± 188 *192.1 ± 190 0.026
LF (nu) 65 ± 12 74.5 ± 12 *75.9 ± 17 *76.1 ± 13 0.04
HF (nu) 32 ± 11 27 ± 19 21.2 ± 19 24.8 ± 11 0.07
LF/HF 2.3 ± 2 4.9 ± 4 5.3 ± 3 5.4 ± 3 0.06
  1. LF: low frequency; HF: high frequency; LF/HF: low frequency/high frequency ration. ms: milliseconds; nu: normalized units. *p < 0.05: Vs. Control.