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How is VO2 max. measured?

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    Phomolo P.
    BW
    Phomolo P.

    There are a number of ways of testing your VO2 max. The most accurate is in a laboratory, where exhaled Oxygen and Carbon Dioxide levels are measured whilst running on a treadmill. This allows us to see how much of the Oxygen inhaled (we know 21% of the air we inhale is O2) is used for energy production. VO2 can also be estimated using tests such as a bleep test, or Balke test. Fitness can be measured by the volume of oxygen you can consume while exercising at your maximum capacity. VO2 max is the maximum amount of oxygen in millilitres, one can use in one minute per kilogram of body weight. Those who are fit have higher VO2 max values and can exercise more intensely than those who are not as well conditioned. Numerous studies show that you can increase your VO2 max by working out at an intensity that raises your heart rate to between 65 and 85% of its maximum for at least 20 minutes three to five times a week . A mean value of VO2 max for male athletes is about 3.5 litres/minute and for female athletes it is about 2.7 litres/minute.

    Zachary B.
    US
    Zachary B.

    How is VO2 Max measured?

    Zachary B.
    US
    Zachary B.

    How is the VO2 Max. measured?o

    Rk S.
    IN
    Rk S.

    How is VO2 max. measured? Employ at least 50% of the total muscle mass. Activities that meet this requirement include running, cycling and rowing. The most common laboratory method is the treadmill running test. A motorised treadmill with variable speed and variable incline is employed be independent of strength, speed, body size and skill. The exception to this rule is specialised tests for swimmers, rowers, skaters, etc. be of sufficient duration for cardiovascular responses to be maximised. Generally, maximal tests using continuous exercise protocols are completed in 6 to 12 minutes be performed by someone who is highly motivated! VO2 max. tests are very tough, but are over quickly If we use a treadmill test as an example, here is what will happen: You will go to a good laboratory at a university fitness program or hospital wellness centre. After a medical exam, and after being hooked up to an ECG machine to monitor cardiac electrical activity, you might start the test by walking on the treadmill at low speed and zero grade. If your fitness level is quite high, the test might be initiated at a running speed. Then - depending on the exact protocol - speed or inclination (or both) of the treadmill will increase at regular intervals (30 seconds to 2 minutes). While running, you will be breathing through a 2-way valve system. Air will come in from the room, but will be expired through sensors that measure both volume and oxygen concentration. Using these values and some mathematics, your oxygen uptake will be calculated by a computer at each stage. With each increase in speed or incline, more muscle mass will be employed at a greater intensity. Oxygen consumption will increase linearly with increased workload. However, at some point, an increase in intensity will not result in an increase in oxygen consumption. This is the true indication of achieving VO2 max. Exercise will cease soon after this point due to the rapid accumulation of lactate that will have started several minutes before. Other indications of VO2 max. are extreme hyperventilation, and a heart rate of very near 220, minus age, that does not increase further with increased workload.

    Muhammad S.
    PK
    Muhammad S.

    Explain the methods of measures the VO2max.

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