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

Table 1

Literature overview of FHRV spectral bands.

Reference	First author	Year	VLFl	VLFu	LFl	LFu	MFl	MFu	HFl	HFu
[45]	Divon	1985							0.70	0.95
[38]	Cerutti	1989	0.00	0.03	0.04	0.15			0.20	0.40
[46]	Ferrazzi	1989							0.70	0.90
[47]	Karin	1992							0.60	0.80
[48]	Metsälä	1993			0.025	0.069	0.07	0.129	0.13	1.00
[16]	Sibony	1994	0.02	0.05	0.05	0.15			0.15	0.50
[49]	Oppenheimer	1994			0.00	0.20			0.70	0.95
[50]	Groome	1994	0.00	0.04	0.04	0.20			0.20	2.50
[17]	Sibony	1995	0.02	0.04	0.04	0.16			0.16	0.30
[18]	Sibony	1995							0.20	0.50
[51]	Rassi	1995			0.07	0.12			0.56	1.10
[52]	Kimura	1996			0.00	0.30
[53]	Moczko	1998	0.01	0.10					0.60	1.00
[54]	Ohta	1999			0.06	0.31			0.30	0.50
[55]	Rantonen	2000			0.03	0.07	0.07	0.13	0.13	1
[56]	Zhuravlev	2002		0.05	0.05	0.20			above 0.2
[57]	Magenes	2002			0.04	0.15	0.15	0.50	0.50	1.00
[43]	Signorini	2003	0.00	0.30	0.03	0.15	0.15	0.50	0.50	1.00
[58]	Van Leeuwen	2003			0.04	0.15			0.15	0.40
[19]	Padhye	2004			0.05	0.25			0.25	1.00
[59]	Yum	2004			0.04	0.15			0.15	0.40
[60]	Siira	2005			0.04	0.15			0.15	1.00
[61]	David	2006	0.01	0.08	0.08	0.20			0.40	1.50
[62]	Tsoulos	2006	0.00	0.03	0.03	0.15	0.15	0.50	0.50	1.50
[36]	David	2007	0.02	0.08	0.08	0.20	0.20	0.40	0.40	1.70
[63]	van Laar	2009			0.04	0.15			0.40	1.50
[64]	Schneider	2009	0.02	0.08	0.08	0.20			0.40	1.70
[4]	Kwon	2012			0.04	0.15	0.15	0.50	0.50	1.00
[65]	Warrick	2012			0.03	0.15	0.15	0.50
[66]	Reinhard	2012			0.04	0.15			0.15	0.40
[67]	Gonçalves	2013	0.00	0.03	0.03	0.15	0.15	0.50	0.50	1.00
[68]	Van Laar	2013			0.04	0.15			0.40	1.50
[69]	Van Leeuwen	2014			0.08	0.20			0.40	1.70

Results from the studied literature works (listed in chronological order) on FHRV spectral bands (l and u indicate, resp., the lower and upper limit of each band).