SFOS 28

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Author:
zf2010
ID:
80263
Filename:
SFOS 28
Updated:
2011-04-17 22:05:50
Tags:
Cardiovascular Effects Exercise
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Description:
SFOS 28
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  1. Oxygen debt
    Excess post-exercise O2 consumption
  2. Maximal O2 consumption
    No further increase O2 uptake despite workload
  3. Anticipation
    Parasympathetic inhibition, sympathetic excitation prior to exercise
  4. Active hyperemia
    Increased blood flow to active muscle and capillary recruitment
  5. How is venous return increased?
    Sympathetic vasocontriction of capacitance vessels
  6. How is total peripheral resistance affected?
    • Progressive decrease
    • Compensates for increased CO to maintain blood pressure
  7. Limits of dynamic exercise
    • Respiratory system
    • Cardiac capacity
    • Peripheral circulation
    • Metabolic capacity of muscles
  8. Autonomic result of conditioning
    • Higher vagal tone, lower sympathetic tone
    • Lower resting heart rate
  9. How is static exercise different?
    Blood pressure increases because peripheral resistance doesn't decrease to compensate for increased CO
  10. Mitral stenosis
    • Valve thickened/fused - impedes flow into left ventricle
    • Limits stroke volume

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