de Abreu Daniela Cristina Carvalho, Porto Jaqueline Mello, Tofani Patricia Silva, Braghin Roberta de Matos Brunelli, Freire Junior Renato Campos
Physiotherapy Course, Department of Health Sciences, Rehabilitation and Functional Performance Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Physiotherapy Course, Department of Health Sciences, Rehabilitation and Functional Performance Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
J Am Med Dir Assoc. 2022 May;23(5):889-892. doi: 10.1016/j.jamda.2021.11.002. Epub 2021 Nov 27.
To determine the accuracy of the 5-time stand-to-sit (5TSTS) test for the identification of older adults with reduced gait speed.
Cross-sectional study.
A total of 559 community-dwelling older adults were included in the study, divided into groups of women (n = 465) and men (n = 94).
5TSTS and gait speed were assessed. Multiple linear regression analysis with adjustment was performed in order to determine the association between 5TSTS and gait speed, followed by the receiver operating characteristic (ROC) curve for the identification of the usefulness of 5TSTS to discriminate older adults with reduced gait speed. Based on the ROC curve, we identified the area under the curve, the sensitivity, specificity, and cutoff points of the 5TSST. Statistical analyses were made using the SPSS software (version 25.0), and a significance level of 5% (P ≤ .05) was adopted.
The 5TSTS showed correlation with gait speed. Additionally, 5TSTS was able to discriminate reduced gait speed with moderate accuracy (P < .05; AUC between 0.7 and 0.8). For women, the cutoff scores for 5TSTS to identify gait speed <0.8 m/s was 14.15 seconds; for gait speed <1.0 m/s, it was 12.67 seconds. For men, the cutoff scores for 5TSTS to identify gait speed <0.8 m/s was 14.67 seconds, and for gait speed <1.0 m/s, it was 13.63 seconds.
The 5TSTS is clinically useful and can be an alternative assessment for discriminating community-dwelling older adults with reduced gait speed, when the gait evaluation is not feasible. The study also suggests different cutoff values for 5TSTS considering the gait speeds <0.8 and <1.0 m/s for older women and men, respectively.
确定五次坐立试验（5TSTS）用于识别步态速度降低的老年人的准确性。
横断面研究。
共有559名社区居住的老年人纳入研究，分为女性组（n = 465）和男性组（n = 94）。
评估5TSTS和步态速度。进行了调整后的多元线性回归分析，以确定5TSTS与步态速度之间的关联，随后绘制受试者工作特征（ROC）曲线，以确定5TSTS鉴别步态速度降低的老年人的有效性。基于ROC曲线，我们确定了曲线下面积、敏感性、特异性以及5TSST的截断点。使用SPSS软件（版本25.0）进行统计分析，采用5%的显著性水平（P≤0.05）。
5TSTS与步态速度相关。此外，5TSTS能够以中等准确性鉴别步态速度降低（P<0.05；AUC在0.7至0.8之间）。对于女性，5TSTS识别步态速度<0.8 m/s的截断分数为14.15秒；对于步态速度<1.0 m/s，截断分数为12.67秒。对于男性，5TSTS识别步态速度<0.8 m/s的截断分数为14.67秒，对于步态速度<1.0 m/s，截断分数为13.63秒。
当步态评估不可行时，5TSTS在临床上有用，可作为鉴别社区居住的步态速度降低的老年人的替代评估方法。该研究还分别针对老年女性和男性，考虑步态速度<0.8和<1.0 m/s时，提出了5TSTS的不同截断值。
