Lee H-Y, Teng C-C, Chai H-M, Wang S-F
Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, 1453R, No.1 Ren-Ai Road Section 1, Taipei, 100, Taiwan.
Man Ther. 2006 Feb;11(1):61-8. doi: 10.1016/j.math.2005.03.008.
The test-retest reliability of both the head-to-neutral head position (NHP) and head-to-target repositioning tests in three cardinal planes has been examined in this study. Twenty young adults underwent both head repositioning tests and retests with 10 min rest intervals. Root mean square error (RMSE, total error), constant error (CE, directional bias), variable error (VE, variability), and standard error of measurement (SEM) were calculated from the position data recorded by an ultrasound-based motion analysis system. Intra-class correlation coefficients (ICC) were used to examine reliability. The results showed fair to excellent reliability of RMSE during head-to-NHP (ICC=0.45-0.80) and head-to-target tests (ICC=0.42-0.90), except during the head-to-NHP test (ICC=0.29) from a head extended position. Low reliability of VE associated with the neck motion toward left side bending indicated a direction-dependent effect. The SEM of RMSE (0.7-2.6 degrees), CE (0.3-4.0 degrees) and VE (0.4-1.5 degrees) indicated an acceptable range of error. The present study indicated acceptable and reliable RMSE measurements with a motion analysis system in healthy young adults. Furthermore, examining the CE and VE could contribute to the interpretation of whether the subject performed the reposition tests with directional bias and repositioning variability, respectively.
本研究考察了头部至中立头部位置（NHP）和头部至目标重新定位测试在三个基本平面上的重测信度。20名年轻成年人接受了头部重新定位测试和复测，休息间隔为10分钟。根据基于超声的运动分析系统记录的位置数据计算均方根误差（RMSE，总误差）、恒定误差（CE，方向偏差）、可变误差（VE，变异性）和测量标准误差（SEM）。使用组内相关系数（ICC）来检验信度。结果显示，在头部至NHP测试（ICC = 0.45 - 0.80）和头部至目标测试（ICC = 0.42 - 0.90）期间，RMSE的信度从中等到优秀，除了从头部伸展位置进行的头部至NHP测试（ICC = 0.29）。与颈部向左侧弯运动相关的VE信度较低，表明存在方向依赖性效应。RMSE的SEM（0.7 - 2.6度）、CE（0.3 - 4.0度）和VE（0.4 - 1.5度）表明误差范围可接受。本研究表明，在健康年轻成年人中，使用运动分析系统进行RMSE测量是可接受且可靠的。此外，检查CE和VE有助于分别解释受试者在重新定位测试中是否存在方向偏差和重新定位变异性。
