VO2 Max is the maximum rate at which your body can consume oxygen during intense exercise. It is expressed in ml/kg/min and is considered the gold standard for measuring cardiovascular fitness. Higher values indicate better aerobic endurance capacity.
Average untrained adults typically score between 35–40 ml/kg/min. Fit recreational athletes often reach 45–55, while elite endurance athletes (e.g., marathon runners, cyclists) can score 60–85+ ml/kg/min. Values above 60 are considered superior for most age groups.
High-intensity interval training (HIIT) and consistent aerobic exercise are the most effective methods. Incorporate activities like running, cycling, swimming, or rowing at 80–95% of your maximum heart rate for short bursts. Consistency over weeks and months drives the most significant improvements.