High-quality human heart rate variability (HRV) data of immersive virtual reality session

The data incorporate heart rate variability (HRV) records collected in 15 healthy participants (7 women) in two sets (background and orthostatic) before and right after a 20-min session in immersive virtual reality. Measurements include the Mean HR — average heart rate; SDNN — standard deviation of all normal RR intervals in ms corresponding to the global heart rate variability; RMSSD — the root-mean-square of the differences between adjacent normal RR intervals in a time interval, expressed in ms, representing parasympathetic activity; the LF index — low-frequency component reflecting the global action (vagal and sympathetic components) on the heart with a predominance of the sympathetic, including variations between 0.04 and 0.15 Hz; HF — high-frequency component indicating the action of the vagus nerve on the heart, including variations from 0.15 to 0.4 Hz; the LF/HF ratio — the relationship between these two indices, reflecting the sympathovagal balance; Baevsky Stress Index, and others. A total of 4,320 high-quality HRV records (288 for each participant) are provided.

本数据集包含15名健康受试者（其中7名为女性）的心率变异性（HRV）记录，相关数据采集于20分钟沉浸式虚拟现实（immersive virtual reality）体验前后即刻，分为静息组与直立位组两套数据集。本次采集的测量指标包括：平均心率（Mean HR），即平均心跳速率；SDNN，即所有正常RR间期的标准差，单位为毫秒，用于表征整体心率变异性；RMSSD，即某时间段内相邻正常RR间期差值的均方根，单位为毫秒，可反映副交感神经活动；低频指数（LF index），指反映心脏整体调节（包含迷走与交感神经成分）且以交感神经占优的低频分量，频率范围为0.04~0.15Hz；高频分量（HF），指反映迷走神经对心脏调节作用的高频分量，频率范围为0.15~0.4Hz；LF/HF比值（LF/HF ratio），即上述两项指标的比值，用于反映交感-迷走神经平衡状态；贝夫斯基压力指数（Baevsky Stress Index）等。本数据集共提供4320条高质量HRV记录，每名受试者对应288条记录。