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Midterm

# 310 Exam 2

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University at Buffalo

Exercise Science

ES 310

Gosselin

Fall

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1. Can you derive the equations for calculating VO2 using the Haldane transformation
2. define and understand
VO2- volume of consumed Oxygen
VCO2- volume of consumed Carbon dioxide
RER- respiratory Exchange Ratio
FIO2- fraction of inspired Oxygen .2093
FEO2- fraction of expired Oxygen gas analyzer
FECO2- fraction of expired Carbon dioxide gas analyzer
FICO2- fraction of inspired .0003
FIN2- fraction of inspired .7904
FEN2- fraction of expired 1-(FECO2 + FICO2)
PH2O- partial pressure of water vapor 19.8mmHg @ 22 degrees C
PO2- partial pressure of Oxygen
3. Can you calculate VO2 using typical lab data
4. How does a change in temperature or barometric pressure affect VO2?
Why do you normalize VO2 values to STPD?
Vatps= VE under conditions VSTPD= standardized to compare VO2 values from different
places or times
5. What are typical VO2max values for
- elite distance runners- males: 83 Females: 62
- garden variety college students- males: 45 Females: 38
- middle-aged individuals males: 35 Females: 30
- post-MI patients- males: 22 Females: 18
severe pulmonary disease VO2 max can be as low as 13
cross country skiers can be as high as 84 or more
6. What happens to FIO2 and PO2 when you go to altitude?
7. What happens to VO2max when you go to altitude? Why?
8. What are the 4 criteria one examines to determine if a subject reached VO2max?
- RER > 1.15 or equal to
-Blood Lactate > 8.0mM
-leveling off of VO2 from 1 workload to the next ( <150 ml/ min)
- attaining age-predicted max HR 9. Can you calculate someone’s functional capacity in METS given VO2max?
10. Can you calculate RER? What information does this give you?
11. What are the standard values for FIO2, FICO2, and FIN2?
- FIO2= .2093 FICO2= .0003 FIN2= .7904
12. What altitude is Laramie, Wyoming situated at?
7,200 feet above sea level about 2,200 meters about 575mmHg barometric pressure
Charles’s Law: the volume a gas occupies is directly proportional to gas temperature
(T1/ V1)= (T2/V2)
Boyle’s Law: the volume a gas occupies is inversely proportional to pressure
(P1V1)=(P2V2) as barometric pressure ^ the volume v
VE (ATPS)= ambient temperature/ pressure saturated
1. What is the cardiovascular Fick equation? VO2= Q (l/min) x (CaO2- CvO2)
2. Which factors affect the rate

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