Lab 4

Question 1

Respiratory Quotient

Answer 1

VCO2/VO2; the amount of carbon dioxide produced to the amount of oxygen consumed at the muscle (within tissues)

Question 2

What does RQ reflect?

Answer 2

It reflects metabolism at the level of tissues at rest

Question 3

What dictates the RQ?

Answer 3

The fuel used (fat or carbs)

Question 4

RQ range

Answer 4

0.7-1.0 (Never exceeds 1)

Question 5

What fuel is used if the RQ is 0.7

Answer 5

Fat is oxidized

Question 6

What fuel is used if the RQ is 1.0

Answer 6

Carbohydrates are oxidized.

Question 7

What is cell respiration?

Answer 7

Cells use oxygen to break down fuels to create energy for the cell.

Question 8

RER

Answer 8

Respiratory Exchange Rate; ratio of CO2 breathed off and O2 consumed at the lung.

RQ=RER during steady state

Question 9

Equation for RER

Answer 9

VCO2/VO2 (L/min)

Question 10

Requirements for equilibrium state to appear to make RQ=RER

Answer 10

sub-maximal exercise intensities for 2-3 minutes.

Question 11

RER Range

Answer 11

Can exceed 1; only when exhalation exceeds the use of O2. This is due to heavy exercise or hyperventilation

Question 12

BMR

Answer 12

Basal Metabolic Rate; the minimum number of calories needed to do nothing but stay in bed.

Question 13

ACSM VO2 Walking Equations

Answer 13

VO2 = [2.68 x S(mph)] + [48.24 x S(mph) x G] + 3.5ml/kg/min

Question 14

VO2 Running Equations

Answer 14

[5.36 x S(mph)] + [24.12 x S(mph) x G] + 3.5ml/kg/min

Question 15

If K.Lowry weighs 89kg and J. Bieber weighs 70kg how many calories will they burn after 1 hour?

Answer 15

(VO2 x Kg x 5 / 1000mL) 60min