Mkacher Wajdi, Tabka Zouhair, Trabelsi Yassine
Department of Research: Exercise Physiology and Pathophysiology, Biology, Medicine and Health, UR12ES06, Faculty of Medicine, Sousse University, Sousse, Tunisia.
J Cardiopulm Rehabil Prev. 2017 May;37(3):223-228. doi: 10.1097/HCR.0000000000000240.
The purpose of this study was to determine the reliability and minimal detectable change (MDC) of various outcome measures that are potentially suitable for evaluating postural control in individuals with chronic obstructive pulmonary disease (COPD).
This was a test-retest reliability study. Participants with COPD were asked to complete 5 balance assessments, separated by 1 week. The assessments included Timed Up and Go (TUG) Test, Unipodal Stance Test (UST), Tinetti Test, Berg Balance Scale (BBS), and the Activities Balance Confidence (ABC) scale. Test-retest reliability using intraclass correlation coefficients and MDC values were calculated for each assessment.
All 5 outcome measures were found to have excellent test-retest reliability (r > 0.90). The MDC95 values were 3.01 seconds and 4.03 seconds for the TUG Test and the UST, respectively; 3.23 points and 3.46 points for the Tinetti Test and the BBS, respectively; and 8.25% for the ABC scale.
The TUG, UST, BBS, the Tinetti Test, and the ABC scale are reliable outcome measures for use with people with COPD, recognizing that individual variability of performance is high. Minimal detectable change scores at the 95% CI can be used to assess change in performance over time and the impact of interventions in this population.
本研究旨在确定各种可能适用于评估慢性阻塞性肺疾病（COPD）患者姿势控制的结局指标的可靠性和最小可检测变化（MDC）。
这是一项重测信度研究。要求COPD患者完成5次平衡评估，每次评估间隔1周。评估包括定时起立行走（TUG）测试、单足站立测试（UST）、Tinetti测试、伯格平衡量表（BBS）和活动平衡信心（ABC）量表。计算每次评估的组内相关系数和MDC值的重测信度。
所有5项结局指标均具有出色的重测信度（r>0.90）。TUG测试和UST的MDC95值分别为3.01秒和4.03秒；Tinetti测试和BBS的MDC95值分别为3.23分和3.46分；ABC量表的MDC95值为8.25%。
TUG测试、UST、BBS、Tinetti测试和ABC量表是用于COPD患者的可靠结局指标，但要认识到个体表现的变异性较高。95%置信区间的最小可检测变化分数可用于评估该人群随时间的表现变化以及干预措施的影响。
