Measurement properties of the 6-min step test for estimating cardiorespiratory fitness in individuals with chronic stroke.

IF 2.2 4区 医学 Q1 REHABILITATION
Augusto Boening, Aline A Scianni, Janayna Avance, Maria Tereza M Alvarenga, Lucas R Nascimento
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Abstract

Background: Measurements of cardiorespiratory fitness are mandatory after a stroke. The 6-min step test emerges as an alternative method in absence of maximal tests.

Objective: To provide information regarding the measurement properties of the 6-min step test in individuals with chronic stroke.

Methods: A cross-sectional, methodological study was conducted. Participants were individuals with stroke, who performed the 6-min step test and the 6-min walk test for calculation of measurement properties and comparison purposes. Outcomes of interest were test-retest and inter-rater reliability, measurement error, minimal detectable change, construct validity, criterion validity by video, intra-rater and inter-rater reliability by video.

Results: Fifty individuals with chronic stroke were included. The 6-min step test had a very-high test-retest (ICC 0.98; CI 95% 0.97-0.99) and inter-rater reliability (ICC 0.95; CI 95% 0.92-0.97). The test's measurement error was 4(5%) and the minimal detectable change was 11 repetitions. The correlation between the 6-min step test and the 6-min walk test suggested high construct validity (r = 0.79; CI 0.66-0.89). In addition, the 6-min step test by video had comparable results with the in-person administration with very high criterion validity (r = 1.00; CI 95% 1.00-1.00),intra-rater (ICC = 1.00; CI 95% 1.00-1.00) and inter-rater reliability (ICC = 1.00; CI 95% 1.00-1.00).

Conclusion: The 6-min step test has appropriate measurement properties to estimate cardiorespiratory fitness in individuals with chronic stroke. Moreover, the video administration of the 6-min step test produced comparable results with the in-person administration.

6分钟步进试验估计慢性脑卒中患者心肺健康的测量特性
背景:中风后心肺功能的测量是强制性的。在没有最大测试的情况下,6分钟步进测试作为一种替代方法出现。目的:研究慢性脑卒中患者6分钟步进试验的测量特性。方法:采用横断面方法学研究。参与者是中风患者,他们进行了6分钟步测试和6分钟步行测试,以计算测量特性和比较目的。感兴趣的结果是测试重测和评估者之间的信度、测量误差、最小可检测变化、结构效度、视频标准效度、视频评估者内部和评估者之间的信度。结果:纳入50例慢性脑卒中患者。6 min步进检验的复验率非常高(ICC 0.98;CI 95% 0.97-0.99)和评估间信度(ICC 0.95;Ci 95% 0.92-0.97)。该测试的测量误差为4(5%),最小可检测变化为11次重复。6分钟步进测验与6分钟步行测验的相关系数较高(r = 0.79;可信区间0.66 - -0.89)。此外,6分钟视频步测的结果与现场给药相当,标准效度非常高(r = 1.00;CI 95% 1.00-1.00), rater内(ICC = 1.00;CI 95% 1.00-1.00)和评估间信度(ICC = 1.00;Ci 95% 1.00-1.00)。结论:6分钟步进试验可用于评估慢性脑卒中患者的心肺功能。此外,6分钟步测的视频给药与现场给药的结果相当。
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来源期刊
Topics in Stroke Rehabilitation
Topics in Stroke Rehabilitation 医学-康复医学
CiteScore
5.10
自引率
4.50%
发文量
57
审稿时长
6-12 weeks
期刊介绍: Topics in Stroke Rehabilitation is the leading journal devoted to the study and dissemination of interdisciplinary, evidence-based, clinical information related to stroke rehabilitation. The journal’s scope covers physical medicine and rehabilitation, neurology, neurorehabilitation, neural engineering and therapeutics, neuropsychology and cognition, optimization of the rehabilitation system, robotics and biomechanics, pain management, nursing, physical therapy, cardiopulmonary fitness, mobility, occupational therapy, speech pathology and communication. There is a particular focus on stroke recovery, improving rehabilitation outcomes, quality of life, activities of daily living, motor control, family and care givers, and community issues. The journal reviews and reports clinical practices, clinical trials, state-of-the-art concepts, and new developments in stroke research and patient care. Both primary research papers, reviews of existing literature, and invited editorials, are included. Sharply-focused, single-issue topics, and the latest in clinical research, provide in-depth knowledge.
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