Center for Human Movement Sciences, University Medical Center Groningen, PO Box 196, 9700 AD Groningen, the Netherlands.
Phys Ther. 2013 Jan;93(1):69-78. doi: 10.2522/ptj.20110164. Epub 2012 Sep 13.
Physical performance tests are important for assessing the effect of physical activity interventions in older people with dementia, but their psychometric properties have not been systematically established within this specific population.
The purpose of this study was to determine the relative and absolute test-retest reliability of the 6-m walk test, the figure-of-Eight Walk Test (F8W), the Timed "Up & Go" Test (TUG), the Frailty and Injuries: Cooperative Studies of Intervention Techniques-4 (FICSIT-4) Balance Test, the Chair Rise Test (CRT), and the Jamar dynamometer. These tests are used to assess gait speed, dynamic balance, functional mobility, static balance, lower-limb strength, and grip strength, respectively.
This investigation was a prospective, nonexperimental study.
Older people with dementia (n=58, age range=70-92 years) performed each test at baseline and again after 1 week. Intraclass correlation coefficients (ICC), standard error of measurement (SEM), minimal detectable change (MDC), and log-transferred limits of agreement of Bland-Altman plots were calculated.
The relative reliability of the F8W, TUG, and Jamar dynamometer was excellent (ICC=.90-.95) and good for the 6-m walk test, FICSIT-4, and CRT (ICC=.79-.86). The SEMs and MDCs were large for all tests. The absolute reliability of the TUG and CRT was significantly influenced by the level of cognitive functioning (as assessed with the Mini-Mental State Examination [MMSE]).
The specific etiology of dementia was not obtained.
The physical performance tests evaluated are useful for detecting differences in performance between older people with mild to moderate dementia and, therefore, are suitable for cross-sectional or controlled intervention studies. They appear less suitable to monitor clinically relevant intra-individual performance changes. Future studies should focus on the development of more sensitive tests and the identification of criteria for clinically relevant changes in this rapidly growing population.
身体表现测试对于评估痴呆老年人的体力活动干预效果非常重要，但在这个特定人群中，它们的心理测量学特性尚未得到系统的建立。
本研究旨在确定 6 米步行测试、8 字形走步测试（F8W）、计时“站起-行走”测试（TUG）、 frailty and Injuries: Cooperative Studies of Intervention Techniques-4（FICSIT-4）平衡测试、椅子站立测试（CRT）和 Jamar 握力计的相对和绝对重测信度。这些测试分别用于评估步态速度、动态平衡、功能性移动能力、静态平衡、下肢力量和握力。
这是一项前瞻性、非实验性研究。
痴呆老年人（n=58，年龄范围为 70-92 岁）在基线时和 1 周后分别进行每项测试。计算了组内相关系数（ICC）、测量误差（SEM）、最小可检测变化（MDC）和 Bland-Altman 图的对数转换一致性界限。
F8W、TUG 和 Jamar 握力计的相对可靠性极好（ICC=.90-.95），6 米步行测试、FICSIT-4 和 CRT 的可靠性良好（ICC=.79-.86）。所有测试的 SEM 和 MDC 均较大。TUG 和 CRT 的绝对可靠性受到认知功能水平（使用 Mini-Mental State Examination [MMSE]评估）的显著影响。
未获得痴呆的具体病因。
评估的身体表现测试对于检测轻度至中度痴呆老年人之间的表现差异非常有用，因此适用于横断面或对照干预研究。它们似乎不太适合监测个体内部具有临床意义的表现变化。未来的研究应侧重于开发更敏感的测试，并为这个快速增长的人群确定具有临床意义的变化标准。
