Re: Protein / Fats/ Carbs relative to bodyweight

Discussion in 'General Fitness' started by elzinator, Feb 7, 2005.

  1. elzinator

    elzinator Guest

    Proton Soup wrote:
    > On Sun, 06 Feb 2005 17:13:01 -0500, JMW <[email protected]> wrote:
    >
    > >"Sam" <[email protected]> wrote:
    > >
    > >>The research literature is pretty clear that taking in more than

    2g/kg is,
    > >>for most people, excessive. The higher protein intakes are either

    stored as
    > >>fat or excreted (these are usually checked with nitrogen levels).

    > >
    > >Regarding the fat storage, you're skipping a few steps ...


    It is relative to total caloric intake.

    > Do you know if there are any studies that compare protein

    requirements
    > of growing, weight-training athletes, versus those who have "reached
    > their genetic potential" / "plateaued" / etc. ? Intuitively at

    least,
    > it seems like "optimum" protein requirements would be quite high for

    a
    > beginning, hypertrophy-minded strength athlete, but over time those
    > requirements would decrease, probably on an inverse exponential type
    > curve, approaching some asymptote.


    Protein turnover (synthesis and breakdown) is a constant process. Even
    those who don't exercise have a baseline turnover which is tissue and
    organ specific (so it it temporally and spatially relative). The rate
    of turnover is relative to the stimuli that induces breakdown. If more
    protein is degraded due to an external (e.g. exercise) or internal
    (e.g. disease/illness) stimulus, the body will attempt to return to a
    baseline homeostasis. The rate or degree of that will depend on the
    available substrates as well as several other factors.

    So it all depends on several factors: initial conditioning (including
    structural and metabolic adaptation or de-adaptation), volume and
    intensity of training, overall diet and lifestyle, and age.
     
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