三维滚轮单轴向旋转测试在人体前庭功能稳定性和心血管功能评价中的应用

目的 探讨三维滚轮单轴向旋转测试在评价人体前庭功能稳定性和心血管功能中的作用。 方法 12名受试者分别接受电动转椅和三维滚轮前倾30°单轴向旋转测试，观察在测试过程中受试者血压、心率和心率变异性的变化情况，并利用前庭功能分级表和Graybiel运动病评分量表对其前庭功能进行分级和评分，对比两种测试的不合格率。 结果 与测试前相比，受试者的Graybiel运动病评分在测试后均明显升高（P<0.05），且以上两种测试方法的前庭功能分级不合格率之间无明显差异；在分别进行电动转椅和三维滚轮前倾30°单轴向旋转测试后，受试者的收缩压和舒张压均明显升高（P<0.05），心率无显著性差异；低频功率（low-frequency power, LF）的归一化值呈降低趋势，高频功率（high-frequency power, HF）的归一化值呈升高趋势，LF/HF呈降低趋势，均未达到显著水平。 结论 三维滚轮单轴向旋转测试与电动转椅测试在对人体前庭功能稳定性和心血管功能评价方面的应用效果基本一致。

Application of 3D roller uniaxial rotation test in the evaluation of human vestibular stability and cardiovascular function

AIM To explore the effect of 3D roller uniaxial rotation test on the evaluation of human stability of vestibular function and cardiovascular function. METHODS Twelve subjects were tested by electric swivel chair and 3D roller uniaxial rotation with leaning forward of 30° respectively. The changes of blood pressure, heart rate and heart rate variability were observed during the above processes. The vestibular stability was graded and scored according to the Vestibular Function Scale and the Graybiel Motion Sickness Scale. The failure rates were compared between the two tests. RESULTS Compared with the data of pre-tests, the scores of Graybiel motion sickness increased significantly after the above two tests (P<0.05). And there was no significant difference in the failure rates of vestibular function classification between 3D roller and electric swivel chair tests. The systolic and diastolic blood pressures of the subjects were significantly elevated (P<0.05), whereas there was no significant difference in heart rates in the above two tests. What’s more, the normalized low-frequency power (LF) decreased, the normalized high-frequency power (HF) increased and LF/HF showed a decreasing trend, which did not reach a significant level. CONCLUSION The application effect of 3D roller uniaxial rotation test and electric swivel chair test in the evaluation of human vestibular stability and cardiovascular function is basically the same.