Evidence-Based Complementary and Alternative Medicine

Review Article

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

Table 6

Measures of short-term HRV reporting (20 studies).
 HRV measures1234567891011121314151617, 181920Total
Time domainmRR (ms) ✓✓          ✓   ✓  4
SDNN (ms) ✓✓✓✓  ✓ ✓✓NR✓✓✓✓✓✓✓✓16
rMSSD (ms) ✓✓ ✓  ✓ ✓ NR ✓     ✓8
Frequency domainLF (ms2)  ✓✓✓ ✓✓ ✓ NR✓✓✓✓ ✓  12
HF (ms2)  ✓✓✓ ✓✓ ✓ NR✓✓✓✓ ✓  12
LFnu  ✓ ✓✓✓✓✓✓✓  ✓   ✓ ✓11
HFnu  ✓ ✓✓✓✓✓✓✓  ✓   ✓ ✓11
LF:HF✓  ✓✓ ✓✓ ✓✓NR✓✓✓✓✓  ✓14
                      
ln (LF)✓✓        ✓         3
ln (HF)✓✓        ✓         3
Other measuresMHR (bpm)✓✓✓✓✓    ✓✓ ✓ ✓✓✓✓ ✓13
MRR (BPM) ✓                  1
BP (mmHG)         ✓✓        ✓3
Single vs. multiple Nu/ratio MMMSMMMMMMMSSMSSSMnaM 
Raw (Y, N) nnyyynyynyyyyyyynynan 
NR = not reported; na, not applicable; mRR = mean RR interval; SDNN = standard deviation of normal-to-normal intervals; rMSSD = root mean square of successive differences; LF = low-frequency spectral power; HF = high-frequency spectral power; LF : HF = ratio of low-frequency power to high-frequency power; nu = normalized units; ln = natural logarithm; MHR = mean heart rate; MRR = mean respiration rate; BP = blood pressure. The approved task force measures of short-term HRV [56,57]; , indices from HRV device (nonstandard measures, e.g., stress index and fatigue index).