The Data for:Circadian stage-dependent and stimulation duration effects of transcutaneous vagal nerve stimulation on heart rate variability.zip

The electrocardiogram (ECG) was measured in three periods (baseline, stimulation, recovery) using a three-lead ECG acquisition device (PC-80B, Shanghai Lixin Instrument Co, Ltd.) in order to assess HRV.为评估心率变异性（Heart Rate Variability, HRV），本研究采用三导联心电图采集设备（PC-80B，上海立信仪器有限公司，Shanghai Lixin Instrument Co, Ltd.），在基线、刺激、恢复三个阶段采集心电图（electrocardiogram, ECG）。