What’s New at AEI

Mixing Chamber vs. Breath-by-Breath Metabolic Systems: Which is Best for Your Lab?
Selecting indirect calorimetry equipment for an exercise physiology laboratory, cardiopulmonary rehabilitation clinic, or animal research facility requires a fundamental decision: Mixing Chamber architecture versus Breath-by-Breath (BxB) architecture. While both...

Common Sources of Error in Oxygen & CO2 Gas Analyzers (And How to Prevent Them)
In respiratory gas exchange measurement and indirect calorimetry, small measurement errors can distort calculated metabolic outputs. A fraction of a percent error in measured oxygen (O2) or carbon dioxide (CO2) concentration can lead to substantial errors in...

Spirometry Machine Guide: How to Choose Equipment for Pulmonary Testing
A spirometry machine is an essential tool for measuring lung function and evaluating how effectively a person can move air in and out of the lungs. Spirometry is commonly used in hospitals, pulmonary clinics, primary care environments, occupational health programs,...

MOXUS vs. MAX-II: Which Modular Metabolic System Fits Your Lab?
If you've spent any time researching metabolic carts, you've probably landed on AEI Technologies' two flagship systems: the MOXUS Modular Metabolic System and the MAX-II (or its economical sibling, the MAX-IIa). Both are built around the same legendary CD-3A Carbon...

What Is a Metabolic Cart? A Complete Guide to How It Works, What It Costs, and How to Choose One
If you've landed here asking "what is a metabolic cart," you're probably either new to metabolic testing or evaluating whether your clinic, gym, or research lab needs one. Either way, you deserve a straight answer, not just a sales pitch. A metabolic cart is a piece...

Practical Applications of MOXUS Metabolic Cart
AEI Technologies recently met up with Dr. Scott Kieffer to shed some light on the practical application of metabolic carts, and the various ways he uses AEI Technologies’ MOXUS Metabolic Cart. Scott Kieffer is a Professor of Health & Exercise Science at Messiah...

What is a metabolic cart?
AEI Technologies is the industry leader in the production, installation and training on how to use metabolic carts. If you are on the lookout for a metabolic cart company, our company has been leading this industry since the 70’s. Read below to learn more about what a...
Metabolic Carts with a Mixing chamber
AEI Technologies Metabolic Cart Systems The better Breath-by-Breath measurement system using a Mixing Chamber Sampling at the mouth has come to be known as a “Breath-by-Breath measurement system”. This is a misnomer. Metabolic carts that use a mixing chamber also...
Metabolic Testing – Calibration Gas Error Analysis
The derivation of VO2, and similarly VCO2 in metabolic testing, is complex involving quite a few variables; these variables may either be measured or estimated.