Bilateral Hegu Acupoints Have the Same Effect on the Heart Rate Variability of the Healthy Subjects
Table 2
Results of heart rate variability.
Group I ()
Group II ()
C1
C2
C1
C2
Mean RR (ms)
876.72 ± 90.13
843.27 ± 54.87
913.64 ± 142.68
865.18 ± 106.56
−0.5474
0.5888
STD RR (ms)
55.9 ± 16.66
54.85 ± 16.24
55.19 ± 13.26
53.62 ± 20.08
−0.1349
0.8938
RMSSD (ms)
45.93 ± 21.62
41.4 ± 17.62
45.48 ± 18.95
41.89 ± 26.63
0.1772
0.8607
NN50 (count)
464.86 ± 362.08
446 ± 371.65
476.64 ± 316.35
395.43 ± 409.93
−0.7654
0.4509
pNN50 (%)
23.48 ± 19.79
21.47 ± 18.56
25.21 ± 17.83
19.92 ± 21.39
−0.7206
0.4776
VLF (ms2)
1602.75 ± 925.69
1567.78 ± 1097.23
1379.81 ± 585.48
1401.52 ± 578.8
0.2157
0.8309
LF (ms2)
601.15 ± 389.84
586.25 ± 374.28
568.15 ± 555.34
549.14 ± 528.43
−0.0463
0.9634
HF (ms2)
966.4 ± 862.48
834.81 ± 713.49
1046.1 ± 823.59
1059.35 ± 1425.28
0.5885
0.5613
VLF (%)
54.53 ± 16.2
54 ± 15.25
50.17 ± 19.04
56.03 ± 16.78
1.5706
0.1284
LF (%)
18.04 ± 6.66
19.11 ± 6.8
17.8 ± 11.91
17.21 ± 5.69
−0.6633
0.513
HF (%)
27.39 ± 13.85
26.86 ± 13.96
32 ± 15.89
26.72 ± 14.51
−1.267
0.2164
LF (n.u.)
41.44 ± 12.61
44.12 ± 16.84
35.73 ± 18.11
41.17 ± 12.98
0.6232
0.5386
HF (n.u.)
58.47 ± 12.62
55.81 ± 16.84
64.2 ± 18.11
58.76 ± 12.99
−0.6254
0.5372
Total power (ms2)
3171.55 ± 1873.31
2989.72 ± 1860.04
2994.95 ± 1327.92
3011.03 ± 2345
0.4523
0.6548
LF/HF ratio
0.78 ± 0.37
1.01 ± 0.83
0.76 ± 0.81
0.8 ± 0.53
−0.8358
0.4109
RR: RR intervals; STDRR: standard deviation of RR intervals; RMSSD: root mean square of successive differences between RR intervals; NN50: the number of successive intervals differing more than 50 ms; pNN50: the corresponding relative amount of NN50 (pNN50); LF: low frequency; HF: high frequency; VLF: very low frequency; data are expressed as mean ± SD. For each parameter, the difference of C1-C2 was calculated and then -test was performed between the group I and the group II.
