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21 Cards in this Set
- Front
- Back
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What is V02 nax
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total amount of oxygen used L/min
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Relate physical training w/ oxygen uptake
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The level of physical training, V02 max directlt correlates w/ max 02
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when do you recach max stroke volume?
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when at v02 max
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Relationship of max heart rate of trained verses sedintary
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should be comparable
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differences in trained vs. sedintary when it cmes to HR
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trained have lower submax hR
trained have lower resting HR |
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what happens to the percent distribution of CO to the heart during exercise?
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it stays the same
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what causes redistribution of CO during exercise?
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1. local metabolite changes
2. decrease in PSNS in the heart and increase in SNS to the heart, veins, ext. increases contractilit 3. non exercising muscles like abdominal organs and kidneys vasoconstrict |
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What happns to MAP during middle exercise
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increases just a little b/c systolic increases a little
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what happens to systolic arterial pressure during mild exercise?
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increases a little b/c aortic pressure is t e greates
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what happens to diastlic arterial pressure during during exercise?
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stays unchanged b/c so many peripheral areas are vasodilated
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what happen to venous return during mild exercise?
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it enhances
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what happens to pulse preasure during exercise?
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it increases
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what does weight traiing cause a huge increase in?
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blood pressur
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what is a-VO2
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differece in the amount of oxygen in the arterial blood versuses the amount of 02 in venous blood as it exists
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what happens to a-VO2 during exercise
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the difference widens so that the amount of oxygen excreted increase
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What changes fo students who began to exercise?
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1. resting heart rae decrease,
2. sub max heart rates for a given time decreased 3. vo2 max increased 4. resting SV increased |
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how does the relationship of O2 uptake and CO change in a trained versus untrained individual
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it doesn't change
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At comparable work rates, how are a-vO2 differences in trained vs. unchanged?
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no differeces
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What does training do to lactate threshold?
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it improves it, starts to build up some lactate int he blood so you can rely on the glycolitic/anerobic metabolism much sooner
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Hormone responses to training
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GH increases at rest
ACTH increases during exercise Corticsol increased dring exersise epi and norepi decresed at rest increased insulin sensitivity |
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health benefits of exercise
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-improved cardiovascular fitness
-decreased risk for CAd, HTN, stroke, diabetes Type 2, osteoporosis -decreased risk for mortality -may help prevent/slow progression of dementia -decreased risk for filty -increased sens of well being |
