Relaxation or Regulation: The Acute Effect of Mind-Body Exercise on Heart Rate Variability and Subjective State in Experienced Qi Gong Practitioners
Table 8
Estimated means, standard errors, and 95% confidence intervals for all HRV parameters in the German sample.
German sample (n = 14)
RS0
SE CI
Qi1
SE CI
Qi2
SE CI
RS1
SE CI
F
lnHF
5.02
0.38 [4.2; 5.83]
4.26
0.38 [3.41; 5.11]
4.44
0.38 [3.61; 5.26]
4.95
0.4 [4.08; 5.82]
2.7
=0.103
lnVLF
5.75
0.27 [5.16; 6.33]
6.52
0.23 [6.02; 7.01]
6.65
0.24[6.13; 7.16]
5.9
0.26 [5.37; 6.52]
5.34
=0.012
Coherence
0.48
0.1 [0.26; 0.7]
0.51
0.11 [0.28; 0.75]
0.59
0.12 [0.32; 0.85]
0.46
0.09 [0.27; 0.65]
0.42
=0.669
SP coherence
1.03
0.16 [0.69; 1.37]
0.9
0.42 [0; 1.8]
1.3
0.27 [0.73; 1.9]
0.96
0.15 [0.64; 1.28]
0.6
=0.57
RMSSD
30.71
6.94 [15.72; 45.71]
18.69
3 [12.21; 25.17]
22.61
3.84 [14.32; 30.9]
28.92
8.1 [11.41; 46.42]
2.66
=0.106
SDNN
38.96
6.2 [25.56; 52.37]
45.29
4.94 [34.62; 55.97]
49.41
5.83 [36.82; 62.01]
42.98
7.13 [27.56; 58.39]
2.09
=0.156
HR
72.1
2.62 [66.43; 77.76]
90.34
2.24 [85.5; 95.18]
90.6
2.5 [85.2; 96.0]
69.47
2.79 [63.43; 75.5]
177.56
<0.001
The variables are the natural logarithm of high-frequency band (lnHF), the natural logarithm of the very low frequency band (lnVLF), coherence, the spline-interpolated coherence (SP coherence; all frequencies <0.004 Hz excluded), the root mean square of successive differences between heart beats (RMSSD), the standard deviation of the normal (NN) inter-beat intervals (SDNN), and heart rate (HR).
