Frequency and Time Domain Analysis of Foetal Heart Rate Variability with Traditional Indexes: A Critical Survey

Table 5

Values ranges of all indexes.

	STV [bpm]	[bpm^2]	[bpm^2]	[bpm^2]	bpm^2	SVB	VLF%	LF%	HF%
Mean	2.90	52.39	9.04	1.24	62.50	8.53	81.31	16.19	2.41
SD	0.78	30.12	4.64	0.94	31.36	3.62	10.06	8.31	2.28
Minimum	1.53	11.20	2.05	0.20	15.65	1.92	38.67	2.68	0.26
Maximum	5.77	179.64	27.09	5.61	189.59	20.64	97.06	47.88	16.42

Active foetal state [384 CTG].