28 January 2016

Test-Retest Reliability of Maximal and Submaximal Gas Exchange Variables in Patients With Coronary Artery Disease

Posted in Scientific News, Research News, Clinical CPET

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A study from the Journal of Cardiopulmonary Rehabilitation & Prevention analyses the reliability of gas exchange variables derived from CPET.

Gas exchange variables derived from cardiopulmonary exercise tests (CPETs) need to be reliable for evaluating interventions and clinical decision making. Whereas peak oxygen uptake (VO2) has shown to be a highly reliable parameter in patients with coronary artery disease (CAD), little is known about the reproducibility of these parameters in patients with CAD. Therefore, the purpose of this study was to confirm the reliability of peak VO2 and to investigate the reliability of submaximal CPET variables in patients with CAD.

Eighty-five patients with CAD (57.6 +/- 8.5 years; 79 males) performed 2 CPETs within 10 days before starting a rehabilitation program.

Both peak VO2 and OUES show excellent test-retest reliability. Accordingly, in the case of no or unreliable peak VO2 data, we suggest using OUES to evaluate cardiorespiratory fitness in patients with CAD.

The article is available for purchase at the following link: click here


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Founded in 1980, COSMED is a privately owned company manufacturing Cardio Pulmonary and Metabolic Diagnostic Equipment. COSMED products include a full range of Spirometers, Pulmonary Function, Body Composition, Nutritional Assessment and Cardio Pulmonary Exercise systems, including Electrocardiographs, Ergometers and Assessment Software. COSMED solutions are aimed for either professional or medical use for many different applications like: Hospital, Clinics, Primary Care, University & Education in Human Physiology, Clinical Nutrition, Commercial Weight Management, Human Performance Centers, Sport Institutions and Health Club Industry. COSMED Headquarters are located in the province of Rome, Italy. COSMED has subsidiaries in the USA, China and Germany, and distributes its products internationally through a constantly growing distributor network covering more than 70 countries.