Sung Paul S, Danial Pamela, Lee Dongchul C
Department of Physical Therapy/Motion Analysis Center, Herbert H. and Grace A. Dow College of Health Professions, Central Michigan University, Health Professions Building 1220, Mt. Pleasant, MI, 48859, USA.
Theoretical Research in Nevro Corp., Redwood City, CA, USA.
Eur Spine J. 2018 Jan;27(1):171-179. doi: 10.1007/s00586-017-5314-1. Epub 2017 Oct 4.
To assess the reliability of standing time and the Kinematic Steadiness Index (KSI) in one-leg standing compared with the Timed Up and Go (TUG) test while considering anthropometric factors in subjects with recurrent low back pain (LBP).
Sixty-six individuals participated in the study. The data were collected on two different days, 1 week apart. The KSI of the core spine, using video motion-capture techniques, was based on the relative standing time and relative standstill time. The intraclass correlation coefficient (ICC) was compared for the reliability between measures. The covariates, such as age, Body Mass Index, and the Oswestry Disability Index (ODI), were analyzed for any interactions based on these measures.
The standing time (t = - 1.01, p = 0.32) and the KSI (t = - 1.70, p = 0.09) were not significantly different between measures. The TUG results were not different between measures (t = 1.01, p = 0.32). The Cronbach's alpha for the standing time was 0.84, for KSI was 0.89, and for TUG was 0.76. The standing time and KSI demonstrated an interaction with age, while the TUG demonstrated an interaction with the ODI score.
The KSI during one-leg standing could help to develop a practical tool to justify quantity and quality of balance outcome measures, which identify balance deficits and core spine rehabilitation strategies in subjects with recurrent LBP.
在考虑复发性腰痛（LBP）受试者人体测量学因素的情况下，评估单腿站立时站立时间和运动稳定性指数（KSI）与定时起立行走（TUG）测试相比的可靠性。
66名个体参与了该研究。数据在相隔1周的两天内收集。使用视频动作捕捉技术，核心脊柱的KSI基于相对站立时间和相对静止时间。比较测量之间可靠性的组内相关系数（ICC）。分析年龄、体重指数和奥斯威斯功能障碍指数（ODI）等协变量基于这些测量的任何相互作用。
测量之间的站立时间（t = -1.01，p = 0.32）和KSI（t = -1.70，p = 0.09）无显著差异。测量之间的TUG结果无差异（t = 1.01，p = 0.32）。站立时间的克朗巴哈系数为0.84，KSI为0.89，TUG为0.76。站立时间和KSI与年龄存在相互作用，而TUG与ODI评分存在相互作用。
单腿站立时的KSI有助于开发一种实用工具，以证明平衡结果测量的数量和质量，从而识别复发性LBP受试者的平衡缺陷和核心脊柱康复策略。
