BPK 142 Study Guide - Final Guide: Atmospheric Pressure, Vo2 Max, Heart Rate Monitor

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BPK 142 - LABORATORY REVIEW QUESTIONS - PART 2 (Week 10)
Laboratory #10 - Determination of Maximum Oxygen Uptake
1. You have been asked to set up a lab for testing maximum oxygen consumption.
Itemize all of the equipment that you will need.
1. Weighing scale
2. Electrically braked bicycle ergometer
3. Heart rate monitor
4. Stopwatch
5. Low resistance respiratory valve plus mouthpiece
6. Nose clip
7. Collins non-kinkable hose electronic carbon di-oxide analyser
8. Electric oxygen analyser
9. Calibration gases for gas analyzers mercury barometer
10. Mouthpiece sterilizing solution
11. Meteorological balloons
12. Ventilation meter
13. 2-way valve
2. In the maximum oxygen uptake test, what is the purpose of measuring barometric
pressure and gas temperature?
- Barometric pressure and gas temperature vary day to day and from one place to
another. It is important to measure them to have accuracy and consistency in results.
- We take barometric pressure and room temp because we want to be able to standardize
our results using the STPD factor.
- The volume of gas we collect up at Burnaby mountain might be higher/lower due to the
pressure and volume.
- By standardizing barometric pressure and temperature, we can compare our results to
that of others.
3. What is the partial pressure of a gas? What is vapor pressure?
- Partial pressure refers to the pressure exerted by an individual gas in a mixture of gases.
- Vapour pressure is pressure of the vapour resulting from evaporation of a liquid (or solid)
above a sample of the liquid (or solid) in a closed container.
4. List three criteria which can be used to determine whether or not a subject has really
exercised to exhaustion and reached VO2 max. in a maximum oxygen uptake test
performed on a bicycle ergometer.
1. The oxygen consumption ceases to increase linearly with rising work rate and
approaches a plateau or drops slightly
2. Blood lactate levels 8.0 mM/liter or greater, 3-5 minutes after cessation of
exercise
3. Heart rate should be close to the age predicted maximum
4. Respiratory exchange ratio greater than 1.15
5. Subjective fatigue, exhaustion and inability to continue
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Document Summary

Bpk 142 - laboratory review questions - part 2 (week 10) Laboratory #10 - determination of maximum oxygen uptake: you have been asked to set up a lab for testing maximum oxygen consumption. Barometric pressure and gas temperature vary day to day and from one place to another. It is important to measure them to have accuracy and consistency in results. We take barometric pressure and room temp because we want to be able to standardize our results using the stpd factor. The volume of gas we collect up at burnaby mountain might be higher/lower due to the pressure and volume. Partial pressure refers to the pressure exerted by an individual gas in a mixture of gases. Vo2 max consumption continues to a peak, then ceases to increase linearly with increased workload. Heart rate and vo2 max have a positive linear relationship until vo2 max is reached (at this point, the graph will plateau).

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