Imagine your body is like a car, and the oxygen you breathe in is the fuel. Now, VO2 max is basically the maximum amount of fuel (oxygen) your body’s engine (muscles) can use during intense exercise. The higher your VO2 max, the more fuel your engine can use, and the longer and faster you can drive your car (run).
In scientific terms, VO2 max is the maximum rate at which your body can take in oxygen, transport it to your muscles, and use it to generate energy during exercise. It’s measured in milliliters of oxygen used per kilogram of body weight per minute (ml/kg/min). A higher VO2 max typically indicates a better aerobic fitness level, which means you can sustain intense exercise for a longer period of time.
But remember, like a car engine, VO2 max isn’t the only factor determining your athletic performance. Your body’s efficiency in using that oxygen and your ability to push through when things get tough also play significant roles.