u3 aos2 final

Question 1

acute responses

Answer 1

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)

Question 2

heart rate (cardiovascular response)

Answer 2

number of beats of the heart per minute

Question 3

stroke volume (cardiovascular response)

Answer 3

volume of blood pumped per beat of the heart

Question 4

vasodilation - sv

Answer 4

when blood vessels in the body widen allowing more blood to flow through them and lowering blood pressure

Question 5

vasoconstriction - sv

Answer 5

the narrowing (constriction) of blood vessels by small muscles in their walls that causes blood flow to be slowed or blocked

Question 6

cardiac output (cardiovascular response)

Answer 6

volume of blood pumped by the heart per minute (stroke volume x heart rate)

Question 7

systolic blood pressure (cardiovascular response)

Answer 7

the pressure exerted by the blood against the arterial walls when the heart contracts (120/80)

Question 8

diastolic blood pressure

Answer 8

the blood pressure recorded during the relaxation phase of the heart cycle

Question 9

redistribution of blood flow to working muscles (cardiovascular response)

Answer 9

altering the percentage of cardiac output that is distributed to various body sites

Question 10

a-vo2 diff (cardiac response)

Answer 10

the difference in the oxygen content of the blood between the arterial blood and the venous blood

Question 11

respiratory frequency (respiratory response)

Answer 11

the number of breaths per minute

Question 12

tidal volume (respiratory response)

Answer 12

volume of air breathed in per breath (finite)

Question 13

ventilation (respiratory response)

Answer 13

volume of air breathed in per minute respiratory frequency x tidal volume

Question 14

pulmonary diffusion (respiratory response)

Answer 14

the transfer of oxygen from the alveoli (lungs) to the capillaries (blood)

Question 15

oxygen defecit

Answer 15

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

Question 16

steady state

Answer 16

when oxygen supply is equal to oxygen demand

Question 17

epoc

Answer 17

amount of oxygen consumed during the recovery period after exercise that is above the amount usually required during rest

Question 18

lip

Answer 18

the final point where lactate production balances with lactate removal

Question 19

decreased blood volume (cardiovascular response)

Answer 19

total quantity of blood in the body

Question 20

increased motor unit recruitment (muscular response)

Answer 20

the number and frequency of motor units recruited for muscle contractions

Question 21

increased muscle temperature (muscular response)

Answer 21

the degree of intensity of heat present in the muscles

Question 22

increased oxygen uptake and consumption (vo2) (muscular response)

Answer 22

volume of oxygen that can be taken up and used by the body

Question 23

increased metabolic by-products (muscular response)

Answer 23

substances left over form metabolic processes

Question 24

decreased energy substrate stores (muscular response)

Answer 24

fuel sources required for atp resynthesis