Hesseberg Karin, Bentzen Hege, Bergland Astrid
Department of Physiotherapy, Oslo and Akershus University College of Applied Sciences, Oslo, Norway; Diakonhjemmet Hospital, Oslo, Norway.
Physiother Res Int. 2015 Mar;20(1):37-44. doi: 10.1002/pri.1594. Epub 2014 Jun 13.
In older people with cognitive impairment, we require reliable and valid measures to assess physical fitness and to measure change, for example, as a result of an exercise intervention. The purpose of our study was to determine the relative and absolute test-retest reliability of the Senior Fitness Test (SFT) in older people with cognitive impairment.
A test-retest reliability study was conducted for the Senior Fitness Test in older people with cognitive impairment. Participants were tested at two time points with a time interval of 24 hours to 1 week between tests. The Intraclass Correlation Coefficient model 3.1 (ICC, 3.1) with 95% confidence intervals (CIs) was used as a measure of relative reliability. The standard error of measurement and minimal detectable change (MDC) were used to measure absolute reliability.
The ICC reflected very high reliability (0.93-0.98) in all SFT items, indicating that there was no systematic error in the measurements. MDC values at the 90% CIs were calculated: chair stand test = 2.0 repetitions, armcurl test = 2.3 repetitions, chair sit and reach test = 6.0 cm, back scratch test = 4.6 cm, 2.45-m up-and-go test = 1.4 seconds and 6-minute walk test = 37.1 metres.
The SFT battery showed high to very high test-retest reliability and thus may be suitable for detecting changes in physical fitness and evaluating physical fitness in older people with cognitive impairment, both in research and for clinical purposes.
在患有认知障碍的老年人中，我们需要可靠且有效的测量方法来评估身体健康状况并衡量变化，例如运动干预的效果。我们研究的目的是确定老年健身测试（SFT）在患有认知障碍的老年人中的相对和绝对重测信度。
对患有认知障碍的老年人进行了老年健身测试的重测信度研究。参与者在两个时间点接受测试，两次测试之间的时间间隔为24小时至1周。使用具有95%置信区间（CI）的组内相关系数模型3.1（ICC，3.1）作为相对信度的度量。测量标准误和最小可检测变化（MDC）用于测量绝对信度。
ICC反映了所有SFT项目的信度都非常高（0.93 - 0.98），表明测量中不存在系统误差。计算了90%CI时的MDC值：椅子站立测试 = 2.0次重复，臂弯举测试 = 2.3次重复，椅子坐立前屈测试 = 6.0厘米，背部抓挠测试 = 4.6厘米，2.45米起立行走测试 = 1.4秒，6分钟步行测试 = 37.1米。
SFT组合显示出高至非常高的重测信度，因此可能适用于检测患有认知障碍的老年人的身体健康变化，并在研究和临床中评估他们的身体健康状况。
