当前位置： SCI文献检索 > European Journal of Preventive Cardiology期刊下所有文献 > Test-retest repeatability of cardiopulmonary exercise test variables in patients with cardiac or respiratory disease.

Test-retest repeatability of cardiopulmonary exercise test variables in patients with cardiac or respiratory disease.

Abstract：

BACKGROUND:The test-retest reliability for multiple cardiopulmonary exercise test (CPX) variables has not been compared in a single study and the influence of different diseases on test-retest reliability has not been examined. We investigated different measures of test-retest reliability for multiple variables and compared them by category of cardiac or respiratory disease. METHODS:Patients with chronic obstructive airways disease (n = 24), heart failure (n = 43), or severe mitral valve disease (n = 26) were recruited into a prospective study. Each patient underwent two bicycle ergometer tests; the first, a familiarization test, with a 10 W/min ramp, and the second a personalized ramp based on the results of the familiarization test to elicit maximal effort within 8-10 min. Intraclass correlation coefficients (ICC) and coefficients of variation between the two tests were calculated. Influence of potential modifiers was assessed using repeated measures analysis of variance. RESULTS:Peak VO2 (ICC 0.95, 95% CI 0.94-0.97), oxygen uptake efficiency slope (ICC 0.93, 95% CI 0.90-0.95), O2 pulse (ICC 0.96, 95% CI 0.94-0.97), and the VE/VCO2 ratio at the nadir (ICC 0.92, 95% CI 0.89-0.95) all showed excellent test-retest reliability, with within-subject coefficients of variation <0.12. VO2 at the anaerobic threshold (ICC 0.84, 95% CI 0.78-0.89) and the VE/VCO2 slope (ICC 0.88, 95% CI 0.79-0.93) showed good test-retest reliability, although inferior to peak VO2. Age, gender, body mass index, disease aetiology, protocol change, and intertest interval did not affect the reliability of most variables. CONCLUSIONS:CPX showed high test-retest reliability; certain variables such as peak VO2 and oxygen uptake efficiency slope outperform others. These results identify which variables are most suitable for serial testing of patients with three common disease aetiologies owing to their superior reproducibility.

journal_name

Eur J Prev Cardiol

journal_title

European journal of preventive cardiology

authors

Barron A,Dhutia N,Mayet J,Hughes AD,Francis DP,Wensel R

doi

10.1177/2047487313518474

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

445-53

issue

eissn

2047-4873

issn

2047-4881

pii

2047487313518474

journal_volume

pub_type

杂志文章

在线工具

Test-retest repeatability of cardiopulmonary exercise test variables in patients with cardiac or respiratory disease.