评估136名社区居住的老年人在3米和6米步行测试之间的一致性。
Assessing the agreement between 3-meter and 6-meter walk tests in 136 community-dwelling older adults.
作者信息
Lyons Jennifer G, Heeren Tim, Stuver Sherri O, Fredman Lisa
机构信息
Boston University School of Public Health, MA, USA.
Boston University School of Public Health, MA, USA
出版信息
J Aging Health. 2015 Jun;27(4):594-605. doi: 10.1177/0898264314556987. Epub 2014 Nov 4.
Abstract
OBJECTIVE
Walking speed is an important marker of functionality that is measured over courses of varying lengths, but it is unclear if course length affects measured pace.
METHOD
A total of 136 older adults completed two consecutive trials each of 3-m and 6-m walking courses, the order of which was randomly assigned. We calculated concordance correlation coefficients (CCC) and created Bland-Altman plots to evaluate the relationship between the two course distances.
RESULTS
Average walking speed was faster for the 6-m course and the second trial of each course. There was high concordance between the first and second trials for both the 3-m and 6-m courses.
DISCUSSION
The 3- and 6-m courses had excellent test-retest reliability and faster walking speed in later than earlier trials. Higher concordance between courses for later trials suggests the utility of practice trials and adjusting for course length when combining walking speed measurements between different course lengths.
摘要
目的
步行速度是功能的一个重要指标，它是在不同长度的路线上进行测量的，但尚不清楚路线长度是否会影响所测量的步速。
方法
共有136名老年人连续完成了3米和6米步行路线的两次试验，试验顺序随机分配。我们计算了一致性相关系数（CCC）并绘制了布兰德-奥特曼图，以评估两个路线距离之间的关系。
结果
6米路线以及每个路线的第二次试验的平均步行速度更快。3米和6米路线的第一次和第二次试验之间具有高度一致性。
讨论
3米和6米路线具有出色的重测信度，且后期试验的步行速度比早期试验更快。后期试验中各路线之间更高的一致性表明了练习试验的效用，以及在合并不同路线长度的步行速度测量结果时对路线长度进行调整的必要性。
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