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11 Cards in this Set
- Front
- Back
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what is the main rate limiting factor of VO2 |
O2 delivery |
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describe the trend between O2 delivery and increasing intensity |
with increasing intensity O2 delivery increases and then levels off at a point determined by genetics and training |
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what are other limiting factors of VO2 max |
respiration, circulation, and metabolism |
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is O2 delivery a problem for small muscles or big muscles and why |
only a problem for bigger muscles because arteries can't vasodialate to the level that is needed to maintain the desired output |
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what is the formula for O2 delivery |
cardiac output*arterial O2 content |
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can VO2 max increase with training |
yes but 50% of it is heritability |
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is the respiratory system a common factor limiting the VO2 |
no |
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what happens to stroke volume in relation to high VO2 |
SV could decrease a little because at VO2 there is not enough time for the blood to oxygenate |
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what are two methods of artificially increasing the amount of O2 in the blood to make up for desaturation |
blood doping-increasing red cell mass erythropoietin |
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how does blood volume influence VO2 max |
with a higher blood volume there will ne a higher cardiac output and a higher stroke volume and a naturally higher VO2 amx |
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how does training impact O2 uptake |
training leads to an increase in capillary density which leads to a higher O2 uptake |
