Metabolic Cart

Question 1

Why do we care about oxygen consumption

Answer 1

For disease and athletic performance

Question 2

What is VO to Max value is good for

Answer 2

Indicating cardio respiratory fitness

Question 3

What was the highest vo2 to ever recorded

Answer 3

Skier 96, cyclist 97.5

Question 4

Where do we see VO2 in the 15’s or 20s

Answer 4

And pulmonary disease and heart failure

Question 5

What is substrate utilization

Answer 5

What are we using for energy. their range is between 0.7 and 1.15.it increases with exercise because of the increased need for carbohydrates we burn more fat at rest

Question 6

What is the difference between RER and RQ?

Answer 6

RQ is cellular metabolism it is similar to RER at rest BUT exercise it is not because it has a maximum of one.RER Can be higher than one because there is added CO2 in the body when dealing with lactic acid during exercise

Question 7

What are the four substrates That can be burned

Answer 7

Fat carbs protein and alcohol. we only burned protein with long distance running and starvation

Question 8

What kind of metabolic carts do we use?

Answer 8

Indirect calorimetry via open circuit spirometry because the air comes from the room.

Question 9

What is the purpose of the metabolic cart

Answer 9

To collect and analyze inspired an expired gas is in order to determine things like oxygen consumption , energy expenditure, and substrate utilization

Question 10

Why do we want the honeycomb in on the pneumotach

Answer 10

To smooth out the air so it is not turbulent we want laminar flow calibrated at 3 L

Question 11

What kind of flow rate should we do if we are going to do it heavy exercise

Answer 11

Hi flow rates

Question 12

What does it mean if there is a dot over in equation

Answer 12

It means there is a time component it is a rate

Question 13

What is an average relative VO2 for college students

Answer 13

35 to 45 mL per kilogram minute

Question 14

What is a normal absolute VO2

Answer 14

4.5 L per minute

Question 15

Why do we use relative instead of absolute

Answer 15

Compare better relative to their body mass

Question 16

What is the difference between a max and a peak

Answer 16

Amax as high as we can possibly get. a peek would be done using a cycle or arm ergometer . it is not as high as we could go but as high as we can go with that mode of exercise . if we give up before we think we reached max we would call it a peek

Question 17

What is the best predictor of VO 2Max

Answer 17

The plateau and decrease is best . this is because a graded exercise test gets harder . heart rate should respond the same because workload increases but VO2 doesn’t

Question 18

What is the error in 220 minus age

Answer 18

10 to 15 bpm

Question 19

What is the substrate use when we are starving

Answer 19

First the car will go first which is called bonking, then fats ,then protein, then the muscles eat themselves

Question 20

What is stroke volume at rest and how high can I go

Answer 20

60 to 70 mL it can reach 200

Question 21

What if the heart rate plateaus

Answer 21

We should not expect VO2 to increase because the AV 02 difference can’t change and stroke volume already plateaued

Question 22

Why does RER skyrocket after exercise

Answer 22

Because CO2 to increases with lag affect and oxygen is decreased

Question 23

Why do we care about RER

Answer 23

Because in an aerobic athlete we want to go because of spares carbs and uses fat

Question 24

What is a calorie

Answer 24

A measure of heat