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

Table 5

HRV difference by constitution ( < 0.05), associated with other interventions.

Reference	5 [37]	10 [42]	14 [46]	16 [48]	18 [50]
Constitution	SCM	SCM	SCM	SCM	SCM
Population	78 students	47 healthy subjects (29–66)	10 TE patients	39 patients (20–59)	44 healthy subjects (20–30)
Subjects by constitution group	na	M (SY = 10, TE = 17, SE = 20, TY = 0); F (SY = 8, TE = 9, SE = 12, TY = 0)	TE = 10	SY = 9, TE = 12, SE = 18, TY = 0	SY = 10, TE = 20 SE = 14, TY = 0
Age and gender controlled by constitution group	na	Gender, age	na	na	Age
Intervention	Meditation program (α version)	Forrest healing program (aroma, foods, tea, trekking)	TE herbal formula (Jowisengcheong-tang)	Autogenic training	Emotional stimulus (horror film)
HRV baseline difference by constitution	No difference	No difference	na	No difference	No difference
HRV by constitution compared to baseline, associated with other interventions
MHR	Decreased in SE; Decreased in SY	Increased in SY	na	Decreased in TE	na
mRR (ms)	na	na	No difference	na	No difference
SDNN (ms)	Increased in SE	Decreased in SY	No difference	Increased in SE; Increased in TE	No difference
rMSSD (ms)	Increased in SE	No difference	No difference	na	na
LF (ms^2)	No difference	No difference	No difference	Na	TE > SY, SE
HF (ms^2)	No difference	No difference	No difference	na	No difference
LFnu	No difference	No difference	No difference	No difference	No difference
HFnu	No difference	No difference	No difference	No difference	No difference
Ln (LF)	na	na	na	na	na
Ln (HF)	na	na	na	na	na
LF/HF	No difference	No difference	na	No difference	No difference

na, not available; M, male; F, female; SE, Soeumin constitution; SY, Soyangin constitution; TE, Taeumin constitution.