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Table 4 Correlation coefficients between the percentage change in time and frequency domain HRV measures and the percentage change in pulse harmonics in both groups of subjects

From: Increased first and second pulse harmonics in Tai Chi Chuan practitioners

Measures %mRRI %HR %SDRR %CVRR %TP %ULFP %VLFP %LFP %HFP %nVLFP %nLFP %nHFP %LHR
Control group
%TPp −0.05 0.04 −0.12 −0.12 −0.11 −0.13 −0.14 −0.11 −0.05 −0.14 −0.08 0.10 −0.13
%Ph1 −0.01 −0.01 0.15 −0.16 −0.13 −0.09 −0.16 −0.14 −0.07 −0.14 −0.11 0.12 −0.16
%Ph2 −0.06 0.05 −0.13 −0.12 −0.13 −0.10 −0.14 −0.14 −0.07 −0.11 −0.10 0.11 −0.15
%Ph3 0.01 −0.03 −0.02 −0.02 −0.08 0.13 −0.08 −0.11 −0.02 −0.04 −0.14 0.06 −0.15
%Ph4 −0.05 0.02 0.18 0.22 −0.01 0.33 −0.03 −0.11 0.01 0.01 −0.05 −0.02 −0.05
%Ph5 0.18 −0.18 0.18 0.15 −0.05 0.44* 0.07 0.04 0.04 0.12 −0.05 −0.11 −0.01
%Ph6 0.28 −0.28 0.31 0.23 0.12 0.57* −0.01 0.12 0.16 −0.12 0.02 −0.05 0.02
%Ph7 0.19 −0.19 0.09 0.03 −0.07 0.40* −0.14 −0.01 0.01 −0.15 −0.08 0.05 −0.13
%Ph8 0.22 −0.24 0.28 0.23 0.14 0.44* −0.01 0.18 0.14 −0.13 0.03 −0.07 0.05
%nPh1 0.13 −0.12 −0.37* −0.46* −0.31 −0.08 −0.17 −0.18 −0.35 0.05 0.19 0.15 −0.01
%nPh2 −0.13 0.12 −0.34 −0.32 −0.30 −0.19 −0.24 −0.14 −0.29 −0.19 0.43* 0.16 0.08
%nPh3 −0.03 0.03 −0.16 −0.16 −0.17 −0.01 −0.09 −0.19 −0.20 0.07 −0.15 −0.03 −0.13
%nPh4 −0.12 0.11 0.13 0.21 −0.08 0.35 −0.02 −0.03 −0.15 0.12 0.13 −0.14 0.11
%nPh5 −0.02 0.01 −0.15 −0.15 −0.16 −0.02 −0.09 −0.10 −0.18 0.01 0.16 0.01 0.02
%nPh6 0.33 −0.32 0.11 −0.01 0.10 0.14 0.03 0.08 0.21 −0.14 0.22 0.06 0.03
%nPh7 0.03 −0.04 −0.27 −0.31 −0.21 −0.17 −0.26 −0.17 −0.13 −0.35 0.06 0.19 −0.13
%nPh8 0.05 −0.07 −0.32 −0.38* −0.24 −0.18 −0.23 −0.22 −0.23 −0.16 −0.12 0.13 −0.18
%F1 −0.71* 0.72* −0.12 0.16 −0.29 0.03 −0.17 −0.22 −0.41* 0.18 −0.01 −0.09 0.04
TCC group
%TPp −0.42* 0.48* −0.06 0.09 −0.06 −0.10 −0.001 −0.06 −0.10 0.08 −0.11 0.01 0.04
%Ph1 −0.43* 0.49* −0.06 0.09 −0.06 −0.10 −0.003 −0.06 −0.11 0.08 −0.10 −0.01 0.05
%Ph2 −0.42* 0.48* −0.03 0.13 −0.03 −0.03 0.02 −0.06 −0.06 0.07 −0.05 −0.02 −0.01
%Ph3 0.23 −0.19 0.40* 0.35 0.38* 0.24 0.41* 0.08 0.32 0.15 −0.06 −0.03 −0.20
%Ph4 0.08 −0.07 0.31 0.30 0.31 0.10 0.28 0.22 0.19 0.02 0.00 −0.05 0.07
%Ph5 −0.14 0.19 0.20 0.26 0.22 0.04 0.26 0.05 0.11 0.12 −0.18 0.02 −0.05
%Ph6 −0.26 −0.21 0.47* 0.41* 0.48* 0.21 0.48* 0.15 0.32 0.13 −0.19 −0.008 −0.10
%Ph7 −0.45* −0.40* 0.44* 0.31 0.41* 0.27 0.40* 0.14 0.30 0.04 −0.16 0.006 −0.10
%Ph8 −0.17 −0.12 0.24 0.19 0.21 0.16 0.14 0.08 0.27 −0.08 −0.05 0.004 −0.13
%nPh1 −0.22 0.20 −0.11 −0.03 −0.10 −0.11 −0.07 −0.03 −0.24 0.03 0.003 −0.18 0.34
%nPh2 −0.19 0.17 −0.16 −0.09 −0.15 0.05 −0.12 −0.10 −0.17 0.05 0.15 −0.23 0.13
%nPh3 −0.25 −0.25 0.07 −0.01 0.05 0.31 0.15 −0.20 0.02 0.24 −0.02 −0.19 −0.25
%nPh4 −0.15 0.13 0.02 0.10 0.01 −0.01 −0.06 0.14 −0.12 −0.13 0.02 −0.13 0.45*
%nPh5 −0.18 0.17 −0.03 0.05 −0.03 −0.01 −0.06 −0.03 −0.17 −0.06 −0.12 −0.11 0.28
%nPh6 −0.48* −0.48* 0.23 0.06 0.22 0.33 0.26 −0.12 0.16 0.13 −0.20 −0.07 −0.34
%nPh7 −0.45* −0.43* 0.24 0.09 0.20 0.32 −0.21 −0.03 0.15 0.06 −0.14 −0.02 −0.18
%nPh8 −0.37* −0.37* 0.13 0.01 0.06 0.33 −0.05 −0.06 0.15 −0.17 −0.08 −0.03 −0.16
%F1 −0.76* 0.76* −0.46* −0.22 −0.40* −0.25 −0.46* 0.12 −0.38* −0.17 0.11 0.09 0.43*
  1. * P < 0.05