Talk:VO2 max

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[edit] Clarification of units in VO2Max

Could somebody clarify what it means to measure oxygen in liters (as opposed to moles or grams) in this context? When we say "one liter of oxygen" in this context, do we mean "moles contained in one liter of pure O2 at 1 bar (14.7 psi) of pressure"? At what temperature? Volume is a bizarre unit to use here especially for a gas, but if that is the (unfortunate) convention then a brief translation for the rest of us seems in order. If nobody else clarifies, then I might follow up. Bmord (talk) 19:03, 9 January 2008 (UTC)


Oxygen uptake is expressed as a rate -- volume per unit time (hence the dot over the V when it is written correctly). Expired gas is typically collected using open circuit spirometry and analyzed for O2 and CO2 concentrations; using Haldane's principle, the volumes of O2 taken up and CO2 produced can be estimated. These data must be corrected to STPD. Today's automated computer systems do all this for you! —Preceding unsigned comment added by 208.58.197.210 (talk) 03:01, 22 February 2008 (UTC)

[edit] Vo2Max also applies does not only applies to persons

In the first paragraph it is said that VO2 max is defined as the highest rate at which oxygen can be taken up and utilized during exercise by a person. but in the same article it is given, by example, the VO2 max of an horse.

[edit] Reference alignment

Have the references been re-aligned since the editing together? My recollection is that the correlation was from the 'Sports Coach/Brian Mac site - ref 3.(ie Not ref 1) Please check. Linuxlad 19:07, 28 Feb 2005 (UTC)

Training effect - still think Cooper investigated it in detail rather than identified it! And using the Cooper test to estimate VO2 max is pretty rough and ready I read. I think respectfully Mr S, I had it right :-) Linuxlad 19:24, 24 September 2005 (UTC) aka 80.177.213.144
I'm still waiting on materials from the Cooper Center, but my understanding from the book I read (which I should and will get a copy of) is that Dr. Cooper discovered that at a certain level of consistent exercise the body suddenly "shifted up" its metabolism. I just want to be accurate. I'll try to get a source for this promptly. Simesa 00:08, 25 September 2005 (UTC)

[edit] Tidying of references

Two changes:

  • moved "see also" to before "external links" as per style guide
  • removed comment "identified by Dr Cooper" on a "see also" link, since that assertion belongs in the article itself, not in the link to the article. (Otherwise Wikipedia would become inconsistent when people edited articles - the statements made in the article might not match the statements made in comments to the links.)

[edit] Making comments more neutral

I'm making changes to make this more neutral. Firstly I'm removing the statement that "expensive" equipment is required to measure VO2 max. Expensive is not really neutral - expensive to whom? The equipment is affordable by a sports club, for example. I'm also removing the reference to "truck mounted", since many types of equipment can be truck mounted. I'm also removing the term "huge" from the Cooper study, since this does not really add any information. How big was the study, 100 people? 1000 people? 10,000 people? The word huge doesn't inform the reader of the actual order of magnitude size of the study. -Unknown User

A fair comment - the Air Force study involved, as I recall, 15,000 subjects, but I'm waiting on materials so I can properly reference that. The reason I included "truck mounted" was that not just ramps are usable. I'll try to get a picture of the truck. Simesa 14:30, 25 September 2005 (UTC)
Perhaps I should clarify "ramp test". A ramp test is a test where the exercise intensity is progressively increased (if you draw a graph of exercise intensity against time, it resembles a ramp). The rate of increase of intensity is called the "ramp rate" (typically it is around 20-30 Watts/min). A ramp test can be done on a treadmill, but also on a cycling or rowing ergometer. User:Martin.Budden
By the way I think the 15,000 subject study was a later study performed by Cooper in the late seventies and 1980s (after Cooper left the Air Force). I don't know how big the Air Force study was, though. User:Martin.Budden

[edit] Moved from article

This was added by 128.119.144.191 (talk · contribs) into the article. it belongs on the discussion page:

Can someone whos good at editing this stuff a)get rid of this line, and b)fix up my edit to somewhat like what it looks in source. Thanks (feel free to mess w the arrangement of info as well sry for offtopic) johnSLADE (talk) 08:31, 1 March 2006 (UTC)

[edit] Alternate reference

Is everyone okay with my adding the phrase "maximal oxygen carrying capacity" to the article? It's basically the same thing and I read it used as a technical term here: [1] in reference to VO2 max. Tyciol 13:38, 13 June 2006 (UTC)

[edit] Removing Greg LeMond from the article?

Since the addition of Daehlie and Indurain effectively gives readers a sense of proportion, is LeMond's result still necessary?

[edit] Genetics

Everything is genetically determined for the most part, but unless it's something that can't be changed very easily or by very much through nurture, then I don't think it is proper to say something is genetically determined for the most part. VO2max can change pretty dramatically in some individuals through training. So I'm removing that sentence in the first paragraph. You can revert if you strongly feel it should be kept. Jamesters 17:20, 14 December 2006 (UTC)

One interesting thing is that the degree to which it improves is also genetically determined: some people can hugely improve their VO2 max with conditioning, and others can never increase it at all no matter how much they train. Collabi (talk) 21:23, 12 February 2008 (UTC)

[edit] Definition

Could somebody please revert the definition to the previous one as at 2:28, January 4, 2007? I am not sure how to do it, but I believe the current definition to be erroneous and the previous one better, although not perfect. The definition of VO2 max does not need a measurement unit, ie. millilitres. Furthermore, the "per kilogram per minute" version is not the only way of measuring it. The true definition should just be "volume of oxygen". The common measurement unit is handled further down the first paragraph anyway, so the information is doubled up. The definition should probably also include "by the working cells/muscle cells". If nobody reverts the article in a few days I'll try a manual edit myself, thanks. MattVickers 07:57, 4 January 2007 (UTC)

[edit] Corrections

I corrected the definition and cleared-up some problems with the section on measuring VO2max. This page needs some major work. I will tinker at it here and there. Thanks to those who have come before. A few specifics....VO2 max is always in reference to incremental or graded exercise...it is possible to work far harder than the intensity at which VO2 max occurs...Of all the research and clinical labs I have ever had involvement with, I have never seen a multi-day protocol used.--Phairphysiology 20:15, 5 February 2007 (UTC)