Aerobic Exercise - Class 6 Flashcards
aerobic exercise
augmentation of energy utilization of muscle by means of an exercise program
improvement of energy utilization is a direct result of
increased
-levels of oxidative enzyme
-mitochondrial density and size
-muscle fiber capillary supply
CV system and muscles adapt to
increased physiological load/training stimulus overtime
when can significant adaptations be seen
as little as 10-12 weeks of training
the higher the lvl of baseline training
the higher required stimulus to elicit change
VO2 max
maximum amount of oxygen consumed per minute at max effort
when is VO2 max typically measured
during multiple muscle group activities
ex: running, swimming, cycling
what is VO2 max dependent on
oxygen transport
oxygen binding capacity of blood
cardiac fxn
O2 extraction capabilities
muscular oxidative potential
aerobic exercise key terms
endurance
deconditioning
energy expenditure
quantifying energy expenditure
rating of perceived exertion
endurance is a
measure of fitness
not muscular performance
endurance
ability to work for longer periods of time
ability to resist fatigue
multigroup muscle activities over long periods of time
deconditioning is frequently seen w/
severe acute illness or long term chronic conditions
deconditioning has rapid decreases of
maximum O2 consumption
CO
muscular strength
how much may VO2 max decrease w/ deconditioning
as much as 0.9% per day over 30 days of bedrest
how is energy expenditure measured
kilocalories
