u3 aos2 final Flashcards
acute responses
the body’s immediate, short-term responses that last only for the duration of the training or exercise session and for a short time period afterwards (recovery)
heart rate (cardiovascular response)
number of beats of the heart per minute
stroke volume (cardiovascular response)
volume of blood pumped per beat of the heart
vasodilation - sv
when blood vessels in the body widen allowing more blood to flow through them and lowering blood pressure
vasoconstriction - sv
the narrowing (constriction) of blood vessels by small muscles in their walls that causes blood flow to be slowed or blocked
cardiac output (cardiovascular response)
volume of blood pumped by the heart per minute (stroke volume x heart rate)
systolic blood pressure (cardiovascular response)
the pressure exerted by the blood against the arterial walls when the heart contracts (120/80)
diastolic blood pressure
the blood pressure recorded during the relaxation phase of the heart cycle
redistribution of blood flow to working muscles (cardiovascular response)
altering the percentage of cardiac output that is distributed to various body sites
a-vo2 diff (cardiac response)
the difference in the oxygen content of the blood between the arterial blood and the venous blood
respiratory frequency (respiratory response)
the number of breaths per minute
tidal volume (respiratory response)
volume of air breathed in per breath (finite)
ventilation (respiratory response)
volume of air breathed in per minute respiratory frequency x tidal volume
pulmonary diffusion (respiratory response)
the transfer of oxygen from the alveoli (lungs) to the capillaries (blood)
oxygen defecit
the state in which there is a shortfall between oxygen supply and demand and the oxygen needed to meet the energy requirements of the activity
steady state
when oxygen supply is equal to oxygen demand
epoc
amount of oxygen consumed during the recovery period after exercise that is above the amount usually required during rest
lip
the final point where lactate production balances with lactate removal
decreased blood volume (cardiovascular response)
total quantity of blood in the body
increased motor unit recruitment (muscular response)
the number and frequency of motor units recruited for muscle contractions
increased muscle temperature (muscular response)
the degree of intensity of heat present in the muscles
increased oxygen uptake and consumption (vo2) (muscular response)
volume of oxygen that can be taken up and used by the body
increased metabolic by-products (muscular response)
substances left over form metabolic processes
decreased energy substrate stores (muscular response)
fuel sources required for atp resynthesis
