Understanding the Issues Affecting the Accuracy of Measuring Oxygen Consumption Utilizing Metabolic Carts

Understanding the Issues Affecting the Accuracy of Measuring Oxygen Consumption Utilizing Metabolic Carts


A presentation on key issues effecting the accuracy and reproducibility of measuring Oxygen Consumption, VO2, via indirect calorimetry utilizing Metabolic Carts, and best-practices for scientists to drive more consistent and precise measurements.

Metabolic Carts have been used for decades as a means of measuring Oxygen Consumption, VO2, via indirect calorimetry. However, the accuracy of these systems is generally not well known nor well understood — there is no universally accepted standard for determining the accuracy, or the validity, of Metabolic Cart measurements. In addition, scientists often do not have access or an appreciation for the specific calculations that are being used by these systems to calculate VO2 and other metabolic data. Collectively, this makes it challenging for researchers and physicians to understand if their data is valid.

In this webinar, sponsored by AEI Technologies, Phil Loeb introduces the measurements, variables and factors in determining VO2. He examines common sources of error and challenges that influence accuracy and reproducibility, and reviews validation methods commonly used by the research community. Following, Danny Rutar, Managing Director of Redback Biotek, presents best-practices, as embodied by the MOXUS Metabolic Cart, that are proven to minimize data error.

Key topics covered during this webinar included…

  • Measurements, variables and other factors in determining VO2
  • Error and other issues with these determining factors
  • How to minimize errors in measuring VO2
  • Summary of Metabolic Cart validation methods
  • How the MOXUS Metabolic Cart offers solutions for minimizing errors in measuring VO2

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Phillip Loeb

AEI Technologies

Phil has enjoyed a successful career spanning more than 40 years in a variety of industries with a focus on scientific and medical instrumentation. This includes technical expertise in electronics, data acquisition, sensor technologies, and software in applications such as gas analysis, flow measurement, electrophysiological signal analysis. During his career he has developed many innovative products and earned 7 patents. For the past 15 years he is Owner and Chief Engineer at AEI Technologies. He has earned a B.S. and M.S. in Bioengineering at the University of Illinois – Chicago.

Danny Rutar

Managing Director
Redback Biotek

With three decades experience in the sports and biomedical technology fields as well as coaching, Danny brings a breadth of knowledge and experience to the team. His work includes developing human monitoring technologies in cutting edge research facilities such as the Bionic Ear Institute, Melbourne, The Australian Institute of Sport and the Human Performance Laboratory, Victoria University. During this time he has provided direct technology support to Olympic Athletes, Professional Teams, Biological Researchers and the Disabilities Sector. He has been instrumental in driving cutting edge developments in the areas of human performance and monitoring technologies. Danny’s roll with Redback Biotek is to direct and oversee all biotechnology developments.