Review Article
Exploring Heart Rate Variability as a Biomedical Diagnostic Tool for the Disympathetic Dimension of Eight-Constitution Medicine
Table 4
HRV difference by constitution (
< 0.05), controlled breathing.
| | Reference | 4 [36] | 2 [34] | 3 [35] |
| | Constitution | SCM | SCM | SCM | | Population (age) | 78 healthy students (20–30) | 32 healthy students (20–30) | 60 healthy students (20–30) | | Subjects by constitution group | SY = 13, TE = 30, SE = 35, TY = 0 | SY = 10, TE = 11, SE = 11, TY = 0 | SY = 18, TE = 18, SE = 24, TY = 0 | | Age and gender controlled by constitution group | Age | Age | Age | | HRV baseline difference by constitution | MHR : SY, SE > TE | No difference | No difference | | HRV by constitution compared to baseline, with paced breathing | Breath-counting on inspiration and expiration (not controlling) | Paced breathing: 12, 6, or 3 times per min | Ratio of inhalation and exhalation (4 : 6, 6 : 4) | | MHR | CIB : SE > TECEB : SE, SY > TE | No difference | No difference | | mRR (ms) | na | No difference | No difference | | SDNN (ms) | No difference | No difference | No difference | | rMSSD (ms) | na | No difference | No difference | | LF (ms2) | No difference | na | No difference | | HF (ms2) | No difference | na | No difference | | LFnu | na | na | No difference | | HFnu | na | na | No difference | | Ln (LF) | na | No difference | na | | Ln (HF) | na | No difference | na | | LF/HF | No difference | na | na |
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na, not available; CIB, Counting on Inspiration; CEB, Counting on Expiration.
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