Day 033 - 10 Oct 94 - Page 45


     
     1
     2   Q.   And strength?
     3        A.  Well endurance and strength are different things.
     4        Endurance depends primarily on carbohydrates in the diet,
     5        what is in common parlance referred to as carbo-loading.
     6        Athletes who are involved in any sport that requires very
     7        substantial endurance, such as marathons or these
     8        triatholons where people swim and bicycle and run, or even
     9        such things as tennis which do require continued aerobic
    10        activity, the muscles need to have access to glycogen
    11        which provides energy for them and a high carbohydrate
    12        diet builds up glycogen.  If one has a high meat diet
    13        there is no -----
    14
    15   MR. JUSTICE BELL:  Carbo-loading is allowing the glycogen
    16        reserves to deplete and them giving them a boost over a
    17        period of three or four days before a particular endurance
    18        endeavour, is it not, in the hope that the muscles will
    19        contain, will be especially full of glycogen which is
    20        going to come in useful; it is not just a high
    21        carbohydrate diet generally?
    22        A.  There are specific techniques that are used in
    23        carbo-loading, and I am not aware of the details of it.
    24        However, a high meat diet or meat in general, any form of
    25        meat, contains no complex carbohydrates whatsoever.  So,
    26        it would not be helpful in building glycogen stores.
    27
    28        In fact, there is perhaps some reason to believe that a
    29        high meat diet may actually impair athletic endeavours,
    30        because after a meat meal or any meal high in fat -- this
    31        would also indict vegetable oils, meals that are quite
    32        high in vegetable oils, such as french fries or salad oil
    33         -- after a meal that is very high in fat, the viscosity
    34        of the blood if it is measured will register as being
    35        somewhat higher, meaning that blood flow is somewhat
    36        impaired.
    37
    38   Q.   That is a temporal thing?
    39        A.  Yes.  It is a temporary event.
    40
    41   Q.   That is not related to diet, is it?  That is related to
    42        having a particular kind of meal and then the efficacy of
    43        the body taking exercise within a period of however many
    44        hours it would be thereafter, or are you relating it to
    45        diet generally?
    46        A.  I am relating to a specific meal rather than the
    47        overall diet.
    48
    49   MR. MORRIS:  Just to go back to that advert, that promotion:
    50        It says:  "Eating two servings a day of these foods can 
    51        make it easier to do things like climb higher and ride 
    52        your bike farther".  So, it is talking about a diet high 
    53        in that group, is it not?
    54        A.  Yes, it is.  Their representation, apparently, as
    55        I read it, that if children include two servings from the
    56        meat group which is predominantly meat items, if they
    57        include two servings of items from the meat group every
    58        day, that they will find it easier to climb higher, to
    59        ride their bikes farther and perhaps to do other things
    60        that children like to do.

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