day 6 - VO2

Question 1

what is absolute VO2 expressed in

Answer 1

L/min

Question 2

what is relative VO2 expressed in

Answer 2

mL/kg/min

Question 3

what kind of VO2 is expressed in L/min

Answer 3

absolute VO2

Question 4

what kind of VO2 is expressed in mL/kg/min

Answer 4

relative VO2

Question 5

each L of oxygen consumed equals BLANK kcal expended by cells

Answer 5

= 5 kcal

Question 6

average VO2 at rest (w/units)

Answer 6

3.5 mL/kg/min

Question 7

to find the caloric expenditure rate (CER) you must use the BLANK VO2

Answer 7

ABSOLUTE VO2 value

Question 8

homeostasis (def)

Answer 8

dynamic consistancy: maintaining of a fairly constant or relatively stable internal environment

Question 9

how does body mediate/regulate homeostasis (pathway sorta)

Answer 9

1) receptors: capable of detecting change(s)

2) integrating center: assesses the input and initiates response (makes plan)

3) effector: corrects changes to internal environment

Question 10

what is the only positive feedback loop

Answer 10

pregnancy/childbirth

Question 11

what kind of feedback do the control systems use

Answer 11

negative feedback loops!!

response reverses the innitial disturbance

Question 12

steady state (def)

Answer 12

relatively stable internal environment during physical activity/exercise

Question 13

most people’s VO2max is around

Answer 13

4L/min

Question 14

rest-to-exercise transitions

Answer 14

oxygen consumption rate (VO2) increases rapidly as exercise begins (or due to increased intensity)

Question 15

VO2 reaches VO2 MAX during BLANK exercise

Answer 15

during SEVERE INTENSITY exercise

Question 16

VO2 MAX (def)

Answer 16

maximal capacity to transport + utilize oxygen at cellular level

Question 17

oxygen deficit (def)

Answer 17

the difference between VO2 in the first few minutes of exercise and the level after a steady state has been reached

Question 18

what kind of ATP production/metabolism is happening during oxygen deficit

Answer 18

ANAEROBIC atp production

Question 19

after steady state is reached, what kind of ATP production/metabolism is happening

Answer 19

AEROBIC atp production (USING O2)

Question 20

more trained subjects produce MORE/LESS lactate because BLANK

Answer 20

LESS lactate because they have more cellular machinery (mitochondria, etc) to do aerobic ATP production and therefore reach steady state sooner (spend less time in anaerobic, lactate-producing state)

Question 21

what is ‘elevated VO2 for several minutes immediately following exercise’ called

Answer 21

excess post-exercise oxygen consumption

(EPOC)

Question 22

excess post-exercise oxygen consumption (EPOC)

Answer 22

elevated VO2 for several minutes immediately following exercise