Malińska Marzena, Zużewicz Krystyna, Bugajska Joanna, Grabowski Andrzej
a Central Institute for Labour Protection - National Research Institute (CIOP-PIB) , Poland.
Int J Occup Saf Ergon. 2015;21(1):47-54. doi: 10.1080/10803548.2015.1017964.
The goal of the study was assessment of the hour-long training involving handling virtual environment (sVR) and watching a stereoscopic 3D movie on the mechanisms of autonomic heart rate (HR) regulation among the subjects who were not predisposed to motion sickness. In order to exclude predispositions to motion sickness, all the participants (n=19) underwent a Coriolis test. During an exposure to 3D and sVR the ECG signal was continuously recorded using the Holter method. For the twelve consecutive 5-min epochs of ECG signal, the analysis of heart rate variability (HRV) in time and frequency domains was conducted. After 30 min from the beginning of the training in handling the virtual workstation a significant increase in LF spectral power was noted. The values of the sympathovagal LF/HF index while sVR indicated a significant increase in sympathetic predominance in four time intervals, namely between the 5th and the 10th minute, between the 15th and the 20th minute, between the 35th and 40th minute and between the 55th and the 60th minute of exposure.
本研究的目的是评估一项时长一小时的训练，该训练包括让不易患晕动病的受试者操作虚拟环境（sVR）并观看一部关于自主心率（HR）调节机制的立体3D电影。为了排除晕动病倾向，所有参与者（n = 19）都接受了科里奥利测试。在接触3D和sVR期间，使用动态心电图方法连续记录心电图信号。对于连续12个5分钟的心电图信号时段，进行了时域和频域的心率变异性（HRV）分析。在开始操作虚拟工作站训练30分钟后，发现低频谱功率显著增加。在sVR期间，交感迷走神经低频/高频指数的值在四个时间间隔内显示交感优势显著增加，即暴露的第5至10分钟之间、第15至20分钟之间、第35至40分钟之间以及第55至60分钟之间。
