If you are familiar with some common tests in exercise science, you may have heard about VO2max.
The maximum volume of oxygen that can be utilized in one minute during maximal or exhaustive exercise. It is measured as milliliters of oxygen used in one minute per kilogram of body weight (ml/kg/min). Basically, it is the measurement of when you are breathing your hardest and your body’s ability to consume oxygen. The higher VO2 max the better in terms of cardiovascular aerobic conditioning. A person’s VO2 max is mostly genetic in regards to the size of your heart and the number of red blood cells in your body, but it is also depends on how adapted you are to specific cardio events like running, swimming, biking, cross country skiing, etc.