This study adopts an experimental research design and convenient sampling method. It is accepted in the nephrology clinic of a northern medical center in Taiwan. It is estimated that 80 patients will be enrolled. After the patients have signed the consent form, use the sealed envelope website (http://www.sealedenvelope.com) will randomly assigned to the experimental group and the control group. The experimental group receive HRV biofeedback for four consecutive weeks, combined with eight-week StressEraser home practice; the control group received general routine care. Both groups of cases were repeated three times on the day of acceptance, one month and three months after the case were accepted, a total of three repeated measurements of physiological indicators (HRV, IL-6, CRP) and symptom scales (Piper Fatigue Scale, Chinese version of Pittsburgh Sleep Quality Table, the second edition of the Chinese version of the Baker Depression Scale) to evaluate the effectiveness of HRV biofeedback. The research results will be statistically analyzed with SPSS version 23.0, and with descriptive statistics, the distribution of basic demographic data and the measurement results of various indicators will be analyzed. Paired-sample t-test, independent-sample t-test, and multivariate analysis of variance (MANOVA) were used to analyze the statistical results of intervention effectiveness inference; the significance level was set to 0.05.
