Parameter

Experimental group

Baseline

Week 3

P value

Time domain

SDNN (ms)

56.90 ± 10.00

87.62 ± 13.89

<0.0001

RMSSD (ms)

59.26 ± 16.03

86.61 ± 7.78

<0.0001

Frequency domain

LF (ms²)

2559.90 ± 1244.25

1911.53 ± 882.15

0.0464

HF (ms²)

1830.13 ± 859.29

3430.40 ± 858.38

<0.0001

LF/HF

2.80 ± 1.91

2.96 ± 1.29

0.7710