Cycling Training · Public discussion

lung adaptation

Started by wnowak06 · · Last activity · 2 posts · 1,142 views

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Cycling Training
Published
15 November 2006
Last activity
15 November 2006
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wnowak06
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  1. Original post
    wnowak06
    Archived post
    #1

    does anyone know/ can they explain the technical details of what happens when fitness increases?

    do your lungs increase in size, or do you grow bigger alveoli...i dont understand the changes that occur in the lungs when fitness increases...any help appreciated.

    thanks

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  2. frenchyge
    Archived post
    #2

    Performance is typically limited by oxygen utilization, rather than oxygen intake, in most healthy people. The lungs are already plenty big to satisfy the body's needs.

    What changes is the ability of the muscle cells to use the oxygen in the production of energy for contraction.

    Lots of good stuff here: home.hia.noexphys.htm

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