慢性阻塞性肺病患者的增量步骤测试的测量特性:一个横截面研究
Tânia Gonçalves1, João Carlos Winck2,3, Fátima Silva4
1Center for Rehabilitation Research (CIR), School of Health, Polytechnic Institute of Porto, Porto, Portugal.
BMJ open
|February 7, 2024
概括
新的增量步骤测试 (IST) 是一种有效和可靠的工具,用于评估慢性阻塞性肺病 (COPD) 患者的运动能力. 这种测试在每天两次进行时没有学习效应,使其适合临床使用.
科学领域:
- 肺部医学 肺部医学
- 运动生理学 运动生理学
- 康复科学 康复科学 康复科学
背景情况:
- 慢性阻塞性肺病 (COPD) 显著影响运动能力.
- 实地测试对于评估COPD患者的功能状态至关重要.
- 增量穿步行测试 (ISWT) 是一种常见的测量方法,但正在开发诸如增量步行测试 (IST) 等新测试.
研究的目的:
- 通过将其与ISWT进行比较来评估IST的构造有效性.
- 确定COPD患者的IST在一天内可靠性和测量误差.
- 调查与重复的IST表现相关的潜在学习效应.
主要方法:
- 采用了横截面研究设计.
- 63名患有COPD的参与者在两个会议中进行了两次IST和两次ISWT.
- 统计分析包括斯皮尔曼的相关性,类内相关系数 (ICC),标准测量误差 (SEM),最小可检测变化 (MDC95),布兰德和奥尔特曼的协议极限和威尔科克森的签名等级测试.
主要成果:
- IST显示出强大而显著的构造有效性,与ISWT (0.72<ρ<0.74,p<0.001) 有很高的相关性.
- 观察到的一天内可靠性很好,ICC2.1为0.95 (95%CI为0.92至0.97).
- 在两次IST试验之间没有发现显著的学习效应 (p>0.05).
结论:
- 增量步骤测试 (IST) 是评估COPD患者运动能力的有效和可靠措施.
- IST可以在同一天可靠地被使用两次,而不会产生学习效应.
- IST的测量误差被认为是不确定的,需要进一步调查.
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