VO2 MAX Test Optimization for Cardiometabolic Phenotyping in RodentsCoronary Heart Disease is the number one killer in the world, and while a great number of tests exist, they don’t always downsize gracefully for mouse models. The Graded Exercise Test (GXT), the gold standard in assessing cardiopulmonary function, is a perfect example of a test that is far more challenging to reproduce in mice. While getting mice to run a treadmill is rather straight forward, accurately and consistently assessing VO2 MAX is not. Measured VO2 peaks that fall short of VO2 MAX or have endless plateaus are common frustrations.