Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, Rua de Reguengos de Monsaraz, n° 14, 7005-399, Évora, Portugal.
Comprehensive Health Research Centre (CHRC), Lisboa, Portugal.
Ir J Med Sci. 2021 Nov;190(4):1625-1632. doi: 10.1007/s11845-020-02492-0. Epub 2021 Jan 21.
This study aimed to determine the absolute and relative test-retest reliability of the functional reach test (FRT) and the handgrip strength test (HGST) in older adults using nursing homes.
Participants (≥ 65 years old), living in nursing homes or using their day care services, were distributed into a group without cognitive impairment (GWCI, n = 43) and a group with mild cognitive impairment (GCI; n = 22). A 1-week test-retest was performed for the FRT and the HGST. Relative reliability was measured by the intraclass correlation coefficient (ICC), and absolute reliability by the standard error of measurement (SEM), minimal detectable change (MDC), and Bland-Altman plots.
The ICC showed high reliability for the FRT (GWCI, ICC = 0.83; GCI, ICC = 0.87) and the HGST (ICC ≥ 0.95 in both hands and participant groups). The absolute reliability was good: FRT, SEM = 2.96/2.29, MDC = 8.20/6.35 for the GWCI and the GCI, respectively; HGST dominant hand SEM = 1.26/0.82, MDC = 3.50/2.29, and HGST non-dominant hand SEM = 1.05/0.80, MDC = 2.90/2.21, for the GWCI and the GCI, respectively. Bland-Altman showed that there was not a systematic bias for the tests in both groups.
Findings show that the FRT and the HGST are reliable, have acceptable measurement error, and may be used for research and clinical purposes to assess functional balance and strength of the hands in older adults using nursing homes.
本研究旨在确定使用养老院的老年人进行功能伸手测试（FRT）和握力测试（HGST）的绝对和相对测试-重测信度。
参与者（≥65 岁），居住在养老院或使用日间护理服务，分为无认知障碍组（GWCI，n=43）和轻度认知障碍组（GCI，n=22）。对 FRT 和 HGST 进行 1 周的测试-重测。相对可靠性通过组内相关系数（ICC）进行测量，绝对可靠性通过测量误差（SEM）、最小可检测变化（MDC）和 Bland-Altman 图进行测量。
ICC 显示 FRT（GWCI，ICC=0.83；GCI，ICC=0.87）和 HGST（双手和参与者组 ICC≥0.95）具有高可靠性。绝对可靠性良好：FRT，SEM=2.96/2.29，MDC=8.20/6.35，分别用于 GWCI 和 GCI；HGST 优势手 SEM=1.26/0.82，MDC=3.50/2.29，HGST 非优势手 SEM=1.05/0.80，MDC=2.90/2.21，分别用于 GWCI 和 GCI。Bland-Altman 图表明，两组测试均无系统偏差。
研究结果表明，FRT 和 HGST 具有可靠性，测量误差可接受，可用于研究和临床目的，以评估养老院中老年人的功能性平衡和手部力量。
