使用二维运动分析验证步态期间躯干前倾角度测量的可靠性和有效性。
Verification of Reliability and Validity of Trunk Forward Tilt Angle Measurement During Gait Using 2-Dimensional Motion Analysis.
作者信息
Iijima Shinno, Shiomi Makoto, Hara Tsuyoshi
机构信息
Department of Medical Technology, University of Health and Welfare Hospital, Nasushiobara, Tochigi, Japan.
Health Sciences Department, International University of Health and Welfare, Ōtawara, Tochigi, Japan.
出版信息
J Chiropr Med. 2023 Jun;22(2):89-95. doi: 10.1016/j.jcm.2022.04.008. Epub 2022 Jul 20.
OBJECTIVE
The purpose of this study was to verify the reliability and validity of trunk forward tilt angle measurement during gait using the 2-dimensional motion analysis, open-source software Kinovea.
METHODS
The participants were 48 healthy people (23.3 ± 3.7 years of age), and the measurement task was normal gait. Two-dimensional motion analysis using Kinovea and measurement using a 3-dimensional motion analyzer were performed synchronously to calculate the forward tilt angle of the trunk during gait. The maximum and minimum values of the trunk forward tilt angle in 1 gait cycle were used as representative values. The intraclass correlation coefficient and the minimum detectable change amount in Kinovea were calculated. We also verified the correlation with the measured values using the 3-dimensional motion analyzer and the error by Bland-Altman analysis.
RESULTS
The intraclass correlation coefficient for Kinovea was 0.925 (95% confidence interval, 0.866-0.958) at the maximum and 0.918 (95% confidence interval, 0.854-0.954) at the minimum. The maximum value of the minimum detectable change amount was 2.7°, and the minimum value was 2.9°. The correlation coefficient between the methods was the maximum value = 0.964 (² = 0.929) and the minimum value = 0.970 (² = 0.941). The average difference between the methods (d) was -0.55 to -0.51° and the standard deviation of the difference between the measured values was 0.66 to 0.84°, and the minimum value was d = -0.59 to -0.54° and SDd = 0.63 to 0.91°.
CONCLUSION
The reliability and validity of the measurement by 2-dimensional motion analysis of the trunk forward tilt angle in young adults were confirmed.
目的
本研究旨在验证使用二维运动分析和开源软件Kinovea测量步态期间躯干前倾角度的可靠性和有效性。
方法
参与者为48名健康人（年龄23.3±3.7岁），测量任务为正常步态。使用Kinovea进行二维运动分析并与使用三维运动分析仪进行的测量同步进行，以计算步态期间躯干的前倾角度。将1个步态周期中躯干前倾角度的最大值和最小值用作代表值。计算Kinovea中的组内相关系数和最小可检测变化量。我们还使用三维运动分析仪验证了与测量值的相关性以及通过Bland-Altman分析得出的误差。
结果
Kinovea的组内相关系数在最大值时为0.925（95%置信区间，0.866 - 0.958），在最小值时为0.918（95%置信区间，0.854 - 0.954）。最小可检测变化量的最大值为2.7°，最小值为2.9°。两种方法之间的相关系数在最大值时为 = 0.964（² = 0.929），在最小值时为 = 0.970（² = 0.941）。两种方法之间的平均差值（d）为 -0.55至 -0.51°，测量值之间差值的标准差为0.66至0.84°，最小值为d = -0.59至 -0.54°且SDd = 0.63至0.91°。
结论
证实了二维运动分析测量年轻成年人躯干前倾角度的可靠性和有效性。
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