Indirect methods of vo2 max measurement, work on the idea that you extrapolate data collected to make an informed guess at where an individuals Vo2 max lies. It is not as a true of a value if a direct method was used (e.g. gas analysis)
These tests are all submaximal (heart rate must not exceed 80% of max hr (220-age)), if heart rate passes out of the submaximal range the test must be determinated)
examples of this are the astrand rhyming cycle ergometer test, the chester step test and YMCA cycle ergometer test.
karvonen method
VO2 max is the maximum amount of oxygen taken in and transported to the working muscles to produces energy
The method of exercise intensity based on a percentage of your VO2 max that directly correlates to 60 percent - 80 percent of your max VO2 is called the "percentage of VO2 max method." This method uses a moderate to vigorous intensity level that falls within the 60-80% range of your maximum oxygen consumption. It is commonly used in setting target heart rate zones for aerobic exercise.
The difference between VO2 max and VO2 peak is what the values represent. VO2 max represents the highest running oxygen amount achievable during a high intensity test. V02 peak represents the maximum value that can be reached without having it raised by a boost.
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Armstrong's VO2 max was reported at 85 ml/kg/min
You can measure your VO2 max at home by using a fitness tracker or smartwatch that has a built-in heart rate monitor and VO2 max estimation feature. Simply wear the device during a high-intensity workout, like running or cycling, and the device will calculate your VO2 max based on your heart rate and exercise intensity.
You can find out what your vo2 max is in many different places. There are various websites dedicated to finding these numbers for a more effective workout.
Try out this site: www.bodybuilding.com/fun/vo2max.htm. They will have everything you need to know about vo2.
VO2 max can suddenly drop due to factors such as illness, injury, lack of exercise, or overtraining. These can all affect the body's ability to efficiently use oxygen during physical activity, leading to a decrease in VO2 max.
showcases
You can find a calculator to tell you an estimate for your vo2 max at the following link: http://www.concept2.com/us/interactive/calculators/vo2max.asp