Ventilation and Exercise So far in this course

Ventilation and Exercise

So far in this course we have done prescribed labs in a number of different ways. Some have been very prescriptive while in others you have been given more leeway. For this lab, you will be given the purpose and some equipment. The rest is up to you!!

To determine the effect of mild and vigorous exercise on ventilation Question: Why is she wearing a nose plug? Why is that important for this lab?

� Ventilation is the volume of air that someone breathes in or out in a given amount of time. � It is often measured in Litres/minute � It is affected by two things Breathing rate (i. e. #breaths per minute) Tidal volume (volume of air with each breath) The calculation is simple: Ventilation = breaths/min x tidal volume

1. 2. 3. 4. 5. 6. 7. 8. What is/are the independent variable(s)? What is the dependent variable? How will you measure ventilation? How will you affect mild exercise? How will you affect vigorous exercise? Who will be your subject(s) What data will you collect? What is your hypothesis?

� We don’t have much! � We have spirometer that looks like this � We also have stairs, chairs and floors

Full IA style lab write up (1 per group)

� Read the shaded area of pages 312 and 313 for some helpful hints on getting started � Complete the 8 questions and show them to Mr. Herb before getting started