What is VO2 max? The metric that could give you better workouts
In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V stands for volume, and O2 stands for oxygen, per Harvard Health. But what do you gain from trying to increase it? For some people, improving VO2 max could help you attain longer, sustained workouts, and offer potential cardiovascular benefits, experts say.
So, whether you're an athlete, or simply trying to improve your performance during exercise, here's why it might be worth taking a closer look at your VO2 max.
What is VO2 max?
As the heart pumps oxygen-rich blood throughout the body, it delivers oxygen to your muscles. Our muscles then utilize oxygen to produce adenosine triphosphate (ATP), which provides energy, says Heather Milton, a board-certified clinical exercise physiologist, and certified strength and conditioning specialist with NYU Langone.
'(VO2 max is) a function of your cardiorespiratory system to (be) able to transmit oxygen from the air around you into your lungs and into your circulatory system,' says Dr. Christopher Tanayan, a sports cardiologist and Director of Sports Cardiology at Lenox Hill Hospital at Northwell Health.
How to find your VO2 max
The most accurate way to calculate your VO2 max is in a clinical setting, says Tanayan. 'A CPET (cardiopulmonary exercise test) is the gold standard of estimating someone's VO2 max,' he says. In the setting of a performance center, this test might also be referred to as an aerobic capacity test, or a VO2 max test, says Milton.
During a CPET, you'll wear a mask that records the amount of oxygen you inhale, the amount of carbon dioxide you exhale and your number of respirations per minute. 'Essentially, the mask is measuring the volume of air that we're taking in,' says Milton.
You'll complete a series of exercises (typically using treadmills or bikes) that become increasingly strenuous over time. The test continues until you reach a point where you're no longer able to consume and deliver oxygen to your muscles – that number is your VO2 max, Tanayan says. Your VO2 max is measured in mL/kg/min (milliliters of oxygen consumed per kilogram of body weight per minute of exercise), according to Harvard Health.
Another way to find your VO2 max is using a wearable (such as a Fitbit, Garmin or Apple Watch) to track your performance during exercise. With a bit of math and extrapolation, wearables can approximate the amount of energy you're using during your workout by measuring your heart rate response to submaximal efforts, ideally taking into account your age, weight and sex, says Milton.
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What's a good VO2 Max score?
Ultimately, 'there is no perfect VO2 max score – it varies from individual to individual,' says Tanayan.
There are lots of variables that go into calculating your VO2 max, including your genetics, age, sex, fitness level and altitude that you're exercising at, says Dr. Amadeus Mason, an assistant professor in the othopaedics and family medicine department at Emory University School of Medicine, and the chief medical officer for Atlanta United FC and medical director for Team USA Track & Field.
A higher VO2 max could indicate better cardiovascular fitness and endurance – this means you'll be able to move and sustain more activity for longer periods of time, says Mason. Research shows there may be a potential correlation between having a higher VO2 max, and decreased risk for cardiovascular diseases, per Harvard Health. However, the metric alone should not be interpreted as an indicator of overall health, Mason underscores.
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How to improve your VO2 max
From a training standpoint, once you know your VO2 max, there are steps you can take to improve this number, which could increase your endurance during a workout. Still, not everyone needs to train to improve their VO2 max; it really depends on your exercise goals. For example, if you're an anaerobic athlete (i.e. a weightlifter or sprinter) who needs short bursts of power to get through a workout, training to increase your VO2 max might not be necessary, says Milton.
On the other hand, if you perform a mix of aerobic (a.k.a. cardio) and anaerobic exercise, there are benefits to improving your VO2 max. Having a solid aerobic base promotes 'fast recovery in between bouts of high intensity (or anaerobic) exercise,' Milton says. For the general population, improving your VO2 max could also help with enhanced longevity and potential cardiovascular benefits, she says.
To increase your VO2 max, try out these types of exercise, experts say:
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Samsung's proposed future comes too late for me, but it could help prevent an injury to someone else. The benefits of a connected ecosystem are vast, and Xealth has already taken a few steps towards this connected future. Dr. Rasu Shrestha detailed how Xealth — and now, by extension, Samsung — is already being used to deliver a connected care experience. Through Xealth, Advocate Health has built a digital experience for pregnant moms. It begins with a secure link, which can be sent via text from the EMR with one click, in much the same way a doctor sends a prescription electronically to a pharmacy. The doctor can see when the patient has signed up, guide them through the pregnancy journey, and if they prescribe a blood pressure cuff, they can also view this data directly within the EMR. 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Yahoo
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Mom of Teen Blames Forgetfulness on Menopause. Then She Saw the Scans: 'All I Could Think About Was Not Being There for Her'
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