![]() ![]() You’ll put a mask over your face that captures the amount of oxygen in your breath. To find out your VO2 max, you’ll likely need to visit a lab or other testing center. ![]() Professional athletes usually have higher VO2 max values and goals than the general population. There's no single number that everyone should reach. VO2 max is especially helpful for athletes like runners, swimmers, cross-country skiers, and rowers to guide their training. Knowing your VO2 max can help you measure fitness and heart health improvements over time. Your VO2 max shows how well your heart and veins push blood to your muscles and the rest of your body. ![]() ![]() Higher VO2 max usually means better physical fitness. The more oxygen you inhale, the more energy your body can use. VO2 max measures how much oxygen (usually in milliliters) you breathe in while exercising as hard as you can. You breathe more quickly and deeply while exercising because your muscles need more energy to work harder. That oxygen fuels chemical reactions that give your muscles energy. Your heart pumps the blood into your muscles. When you breathe, you inhale oxygen into your blood. Knowing your VO2 max can help you train for sports, track your fitness improvement, and improve your heart health. It's a common tool to understand your fitness level. VO2 max is the amount (volume) of oxygen your body uses while exercising as hard as you can. ![]()
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