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#REDIRECT [[VO2Max Show and Tell Talk]]
: ''This article is about the topic VO2Max. For the Show & Tell talk see [[VO2Max (Show and Tell Talk)]].''
 
 
 
'''VO<sub>2</sub> max''' (also known as '''maximal oxygen consumption/update''' or '''maximal aerobic capacity''') is the maximum rate at which oxygen is consumed during exercise of increasing intensity. The name comes from the volume (''V''), oxygen (O<sub>2</sub>) and maximum (max)<ref>https://en.wikipedia.org/wiki/VO2_max</ref> . 
 
 
 
VO<sub>2</sub> max is used as a way to quantify the endurance fitness of a person, as the oxygen consumption reflects cardiorespiratory fitness and endurance capacity. The American Heart Association recommended VO<sub>2</sub> max to be regularly assessed as a clinical vital sign<ref>Ross, Robert; Blair, Steven N.; Arena, Ross; Church, Timothy S.; Després, Jean-Pierre; Franklin, Barry A.; Haskell, William L.; Kaminsky, Leonard A.; Levine, Benjamin D.; Lavie, Carl J.; Myers, Jonathan; Niebauer, Josef; Sallis, Robert; Sawada, Susumu S.; Sui, Xuemei; Wisløff, Ulrik (13 December 2016). "Importance of Assessing Cardiorespiratory Fitness in Clinical Practice: A Case for Fitness as a Clinical Vital Sign: A Scientific Statement From the American Heart Association". Circulation. 134 (24): e653–e699. doi:10.1161/CIR.0000000000000461. <nowiki>PMID 27881567</nowiki>. S2CID 3372949</ref>
 
 
 
Additionally, VO<sub>2</sub> max is used widely by athletes and in evaluating fitness.
 
 
 
Typically, VO<sub>2</sub> max is measured either in mL/kg/min or in  "METs" (Metabolic equivalent of task), where a MET is equal to 3.5 mL/kg/min – which is considered to be the average resting energy the body uses when sitting still.<ref>https://en.wikipedia.org/wiki/Exercise_intensity</ref>
 
 
 
== Measuring VO<sub>2</sub> max ==
 
 
 
=== Clinical measurements ===
 
The most accurate way of measuring VO<sub>2</sub> max is through a "graded exercise test" on a treadmill or cycle ergometer, in which the exercise intensity is increased over time while measuring the persons ventilation alongside the oxygen and carbon dioxide concentration in the inhaled/exhaled air. When the oxygen consumption remains steady despite an increase in work, the VO<sub>2</sub> max is reached.
 
 
 
Given the equipment requirements, these tests are not easily accessible and require extensive setup, typically limiting them to medical facilities or professional athletes.
 
 
 
=== Cooper test ===
 
The Cooper test is a simpler test that can be used to roughly approximate VO<sub>2</sub> max without the requirement for too much equipment. The test is performed by covering as much as distance (i.e. running as far as possible) within 12 minutes.
 
 
 
From the distance covered one can estimate the VO<sub>2</sub> max using the following formula: VO<sub>2</sub> max = (distance in meters - 504.9)/44.73.
 
 
 
=== Wearables ===
 
A number of current-generation wearable devices try to estimate VO<sub>2</sub> max from the sensor data. Depending on the device different approaches to the estimation are used<ref>https://www.wareable.com/health-and-wellbeing/vo2-max-guide-understand-and-increase-789</ref>.
 
 
 
Recent [[Fitbit]] devices estimate the VO<sub>2</sub> max as a range of likely values based on resting [[heart rate]], age, gender & weight. When using the Fitbit to go on runs while collecting GPS data it will also provide a more detailed estimate.
 
 
 
Similarly, recent [[Apple Watch]] models do calculate the VO<sub>2</sub> max when using the outdoor run or walk workout modes to collect data both on heart rate as well as distance covered using the GPS.
 
 
 
Some [[Garmin]] and [[Polar]] devices do predictions as well.
 
 
 
== References ==
 
<references />
 
 
 
[[Category:Topics]]
 

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