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

LF: low frequency; HF: high frequency; LF/HF: low frequency/high frequency ration. ms: milliseconds; nu: normalized units. *p < 0.05: Vs. Control.

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