Exploring Heart Rate Variability as a Biomedical Diagnostic Tool for the Disympathetic Dimension of Eight-Constitution Medicine

Table 8

Various explanations given as the sources of the short-term HRV measures (20 studies).

HRV measures	Explanations	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19^+	20	Total
Year		2005	2016	2016	2015	2014	2013	2013	2013	2012	2011	2009	2009	2009	2008	2007	2007	2007	2007	2006	2004
LF	SNS						✓										✓				✓	3	14
	SNS > PNS				✓	✓		✓		✓						✓						5
	SNS, BAL											✓										1
	BAR, SNS, PNS	✓									✓							✓				3
	BAR, PNS		✓																			1
	BAR			✓																		1
HF	RSA, PNS	✓	✓		✓					✓	✓	✓				✓						7	14
	PNS					✓	✓	✓									✓	✓			✓	6
	RSA			✓																		1
LF : HF	BAL	✓						✓		✓	✓	✓		✓		✓	✓	✓			✓	10	10

BAR, the activity of Baroreflex; PNS, parasympathetic nervous system; SNS, sympathetic nervous system; RSA, respiratory sinus arrhythmia; BAL, a balance of sympathetic and parasympathetic influences. Explanation on HRV measures not reported; ⁺not applicable.