Based on your VO₂ Max data, heart rate zones help categorize your effort by intensity. Each zone trains a different part of your system, and intentionally spending time in each zone will lead to massive gains in fitness, recovery & overall work capacity.

If you're tracking calories, adjusting your macros, or wondering why fat-loss feels slow — RMR testing will no doubt provide some clarity. First, what is metabolism? If you looked it up, the technical definition would be something like “the whole sum of processes that occur within an organism to sustain life.”

VO₂ Max (maximal oxygen uptake) is the maximum amount of oxygen your body can consume & use at peak exercise. It’s widely regarded as the gold standard for cardiovascular fitness & is a strong predictor of longevity & all-cause mortality.