Tsekoura Maria, Anastasopoulos Konstantinos, Kastrinis Alexandros, Dimitriadis Zacharias
Department of Physiotherapy, School of Health Rehabilitation Sciences, University of Patras, Greece.
Department of Physiotherapy, Scoliosis Spine Laser Center, Athens, Greece.
J Frailty Sarcopenia Falls. 2020 Dec 1;5(4):109-113. doi: 10.22540/JFSF-05-109. eCollection 2020 Dec.
The most frequently employed versions of the sit-to-stand test (STST) are the 5 times STSΤ and the 30 seconds STST. However, it is not known whether a variation with different number of repetitions or time could be more appropriate for older adults. The objective of this study was to investigate the reliability of STST at different time points and number of repetitions. The test was performed in 33 older adults (73±6.1 years) for 40 seconds. The participants performed the procedure twice with a day interval between the sessions. The test was video-taped and the data were processed by two examiners. The highest test-retest reliability was found for the 4 (ICC=0.73, SEM=1.48, SDD=1.68), 5 (ICC=0.76, SEM=1.73, SDD=1.97) and 6 repetition (ICC=0.78, SEM=1.78, SDD=2.03). The inter-rater reliability was excellent independently of the number of trials (ICC>0.9). The correlation of the time at the 4 and 6 repetition with the time at the traditionally selected 5 repetition was excellent (r>0.9). The termination of the STST at the 4 repetition seems to provide equally reliable and valid estimations with the termination at the 5 repetition. Future studies should examine a 4 times STST since the reduction of the number of repetitions may be less tiring and safer for older adults.
坐立试验（STST）最常用的版本是5次坐立试验和30秒坐立试验。然而，尚不清楚不同重复次数或时间的变化是否更适合老年人。本研究的目的是调查不同时间点和重复次数下坐立试验的可靠性。对33名老年人（73±6.1岁）进行了40秒的测试。参与者进行了两次该程序，两次测试之间间隔一天。测试过程进行了录像，数据由两名检查人员处理。发现4次（组内相关系数ICC = 0.73，标准误SEM = 1.48，最小可检测差异SDD = 1.68）、5次（ICC = 0.76，SEM = 1.73，SDD = 1.97）和6次重复（ICC = 0.78，SEM = 1.78，SDD = 2.03）时重测信度最高。评分者间信度极佳，与试验次数无关（ICC>0.9）。4次和6次重复时的时间与传统选择的5次重复时的时间相关性极佳（r>0.9）。4次重复时坐立试验的终止似乎与5次重复时的终止提供同样可靠和有效的估计。未来的研究应检验4次坐立试验，因为减少重复次数对老年人来说可能不那么累且更安全。
