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VAM

HillClimber101HillClimber101 Posts: 149
hi,

not sure if this is the right section, but...

how do i work out my VAM, the thing that is meters gained (altitude) per hour,

what i want to work out is...

130 meter assent

9 min. 15sec.

so can anyone help?

Posts

  • AnonymousAnonymous Posts: 79,667
    I just did a google search on VAM Calculator and it returned loads of hits...

    Can't check any out on work pooters though so can't recommend any!
  • redddraggonredddraggon Posts: 10,862
    VAM is simply Meters/hour

    So all it take is a bit of very basic maths:

    130 x 60/9.25 = 843.24 m/hr
    I like bikes...

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  • vorsprungvorsprung Posts: 1,953
    Here is an article on VAM

    http://www.53x12.com/do/show?page=article&id=74

    Using the formula shown I seem to score just under 3 Watts per Kilo, but my results are from quite a short hill :)
  • Jeff JonesJeff Jones Posts: 1,865 Editor
    vorsprung wrote:
    Here is an article on VAM

    http://www.53x12.com/do/show?page=article&id=74

    Using the formula shown I seem to score just under 3 Watts per Kilo, but my results are from quite a short hill :)
    Just plugged in a couple of my climbing times, which I have good power data for - the formula seems to underestimate my w/kg by about 10%.

    At least Dr Ferrari acknowledges that gradient (strongly) affects VAM, which he didn't a few years ago.
    Jeff Jones

    Product manager, Sports
  • Av itAv it Posts: 105
    Jeff Jones wrote:
    vorsprung wrote:
    Here is an article on VAM

    http://www.53x12.com/do/show?page=article&id=74

    Using the formula shown I seem to score just under 3 Watts per Kilo, but my results are from quite a short hill :)
    Just plugged in a couple of my climbing times, which I have good power data for - the formula seems to underestimate my w/kg by about 10%.

    At least Dr Ferrari acknowledges that gradient (strongly) affects VAM, which he didn't a few years ago.

    At last and you dont need to be a doctor to see this yourself. I can monster up a climb until it gets to a "certain" level then it all drops of. most people i know are the same.

    I know measuring VAM with a powermeter can show an increase as the gradient rises but iom talking about the observed effect(not measured) of increasing the gradient beyond a tipping point
  • PaterPater Posts: 10
    Loving the idea that I can work out my figures the ghetto way by just riding up a hill fast with my stopwatch but my head was hurting trying to do the maths on this! Found this page though which is basic but does it for me
    http://www.cyclingfitness.net/calculate-vam-watts-kg.php
  • da gooseda goose Posts: 284
    I have one of the mavic computers which have an altimeter etc and works out the gradient (shown as %) and vam etc handy tool if you ride well.
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