Maes Leen, Dhooge Ingeborg, De Vel Eddy, D'haenens Wendy, Bockstael Annelies, Keppler Hannah, Philips Birgit, Swinnen Freya, Vinck Bart M
University of Ghent, Faculty of Medicine, ENT-department, De Pintelaan 185, B-9000 Ghent, Belgium.
J Vestib Res. 2008;18(4):197-208.
Rotational testing has been used in clinical practice to explore vestibular function. Frequently used stimulus algorithms include: sinusoidal harmonic acceleration test (SHAT), pseudorandom rotation test (PRRT), and velocity step test (VST). The aim of this study was to construct normative data as well as to evaluate the test-retest reliability of those rotational paradigms. One hundred and fifty subjects without vestibular history participated in the normative study. The SHAT was presented at 5 frequencies (0.01, 0.02, 0.05, 0.1, 0.2 Hz), whereas for the PRRT those frequencies were summed. The VST consisted of a rotation to the right and left and was administered twice. Thirty-two volunteers were retested to assess the test-retest reliability. Separate normative data were needed according to sex, stimulus type, and frequency for the SHAT and PRRT, and according to stimulus and direction for the VST. High reliability by means of the intraclass correlation coefficient (ICC) and the method error (ME) was obtained for the SHAT, PRRT, and VST gain, SHAT phase and asymmetry, and VST time constant parameters. The availability of data on the minimal detectable test-retest differences supports the evaluation of rotational responses on a retest session.
旋转测试已在临床实践中用于探索前庭功能。常用的刺激算法包括：正弦谐波加速度测试（SHAT）、伪随机旋转测试（PRRT）和速度阶跃测试（VST）。本研究的目的是构建规范数据，并评估这些旋转范式的重测信度。150名无前庭病史的受试者参与了规范研究。SHAT以5种频率（0.01、0.02、0.05、0.1、0.2Hz）进行，而PRRT则是将这些频率相加。VST包括向右和向左旋转，并进行两次。32名志愿者进行了重测以评估重测信度。对于SHAT和PRRT，需要根据性别、刺激类型和频率分别获取规范数据，对于VST，则需要根据刺激和方向获取规范数据。通过组内相关系数（ICC）和方法误差（ME），SHAT、PRRT和VST增益、SHAT相位和不对称性以及VST时间常数参数均获得了较高的信度。关于最小可检测重测差异的数据可用性支持在重测期间对旋转反应进行评估。
