02 April 2013

Validity of COSMED's Quark CPET Mixing Chamber System in Evaluating Energy Metabolism

Posted in Quark CPET, Scientific

Validity of COSMED's Quark CPET Mixing Chamber System in Evaluating Energy Metabolism

A new study was published this month on the Research in Sports Medicine Journal with a validation of Quark CPET with Mixing Chamber versus the Douglas Bag method

The validation study was performed by Dr Nieman's team at the prestigious Human Performance Lab of the Applachian State University (ASU). The study objectives were to validate the accuracy of COSMED’s Quark cardiopulmonary exercise testing (CPET) metabolic mixing chamber system in measuring metabolic factors during maximal, graded exercise testing.

The study highlighted that "the pattern of change in VO2, VCO2, VE, FeO2, FeCO2, and RER did not differ significantly between (Quark) CPET and Douglas bag systems".

The study conclusions state that "this study demonstrated that the CPET mixing chamber metabolic measurement system was accurate when compared with the Douglas bag system for the core measurements of FeO2, FeCO2, and minute ventilation during graded, maximal exercise".

The article details are the following:

- Title: "Validity of COSMED's Quark CPET Mixing Chamber System in Evaluating Energy Metabolism During Aerobic Exercise in Healthy Male Adults"
- Authors
: David C. Nieman, Melanie D. Austin, Dustin Dew & Alan C. Utter. Department of Health, Leisure, and Exercise Science, Human Performance Lab, Appalachian State University, Boone, North Carolina, USA<
- Published in
: Research in Sports Medicine, 21:136–145, 2013

The scientific article can be purchased at the following link: click here


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.