cardiovascular system during exercise

Question 1

untrained athletes heart rate at rest

Answer 1

70bpm

Question 2

untrained athletes HR at sub maximal

Answer 2

100bpm

Question 3

untrained athletes HR at maximal

Answer 3

220 - age

Question 4

untrained athletes stroke volume at rest

Answer 4

70ml

Question 5

untrained athletes SV at sub maximal

Answer 5

100ml

Question 6

untrained SV at maximal

Answer 6

100ml but will decrease

Question 7

untrained athletes cardiac output at rest

Answer 7

5l/min

Question 8

untrained athletes Q at sub maximal

Answer 8

10l/min

Question 9

untrained athletes Q at maximal

Answer 9

20l/min

Question 10

trained athletes HR at rest

Answer 10

50bpm

Question 11

trained athletes HR at sub maximal

Answer 11

120bpm

Question 12

trained athletes HR at maximal

Answer 12

220 - age

Question 13

trained athletes stroke volume at rest

Answer 13

100ml

Question 14

trained athletes SV at sub maximal

Answer 14

200ml

Question 15

trained athletes SV at maximal

Answer 15

200ml but will decrease

Question 16

trained athletes cardiac output at rest

Answer 16

5l/min

Question 17

trained athletes Q at sub maximal

Answer 17

24l/min

Question 18

trained athletes Q at maximal

Answer 18

40l/min

Question 19

what is the relationship between exercise intensity and stroke volume

Answer 19

SV increases inline with exercise intensity
SV plateaus as exercise intensity continues to rise
At max, SV decreases
max SV is reached during sub maximal intensity

Question 20

cardiovascular drift

Answer 20

a decline of SV as we reach max intensity

Question 21

why does cardiovascular drift occur

Answer 21

SV increases because venous return increases (more blood returning, moire can leave)
HR continues to increase which doesn’t leave enough time for ventricles to fill completely
Less blood in the ventricles, therefore less ejected per beat
Results in decreased SV.