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Blood And Excerise - College Essays

Blood And Excerise


Type II muscle fibers oxidize lactate at a very fast rates. When muscle
contraction produces a significant amount of lactate, it is then released into
the central circulation of the blood, and within seconds it is made available to
that muscle for energy. Therefore, 75% of the lactate produced from high
intensity exercise is made available for energy production in type II muscle
fibers. The remaining 25% of lactic acid is used for energy in the heart, the
make up of liver glycogen, and the supply of energy to inactive muscles. A good
example of this would be a runner who is exceeding his or her planned race pace
in a 10k. The excess lactic acid accumulated in the contracting muscle ...

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of
athletics to train your muscles, body and mind to accomplish gains in
performance even in the presence of lactic acid. Coaches and athletes should
design training programs with this being a primary focus. This is done by two
basic components of training. Long Slow Distance (LSD) training beyond the
normal racing distance, will develop tissue enzyme adaptations that will rely
upon the use of free fatty acids for energy production, which will result in
less lactic acid being produced. LSD training will also increase the rate of
lactic acid removal from the blood and muscles. During continuos steady state
exercise, you increase capillary density and mitochondria function in skeletal
muscle, These two peripheral adaptations brought on by LSD training will enable
your body to handle lactic acid much more efficiency. High intensity training
will develop the cardiovascular system to increase the rate of oxygen transport
to the contracting muscles so there is less reliance on ...

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endurance training is an increase in heart
size and pumping strength. These two factors see to raise the volume of blood
which can be pumped per beat. Incidentally, this is also part of why aerobic
athletes have very decreased resting heart rates. Actually, their Q values are
the same as sedentary people, it's just that since their heart can pump more
blood in a given beat, the heart doesn't have to beat as often at rest. Well,
another adaptation to endurance exercise is an increase in aerobic enzymes in
the muscles and an increase in mitochondria density and number. This serves to
increase the (A-V02 difference) as the muscles are now capable of extracting
more oxygen from the ...

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Blood And Excerise. (2004, March 16). Retrieved March 29, 2024, from http://www.essayworld.com/essays/Blood-And-Excerise/4668
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PAPER DETAILS
Added: 3/16/2004 03:51:22 PM
Category: Health & Medicine
Type: Premium Paper
Words: 1269
Pages: 5

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