Synopsis of Experiment

  1. A spirometer will be used to measure respiratory volumes and breathing rate in three female Caucasian subjects that are 25 years of age and 65 inches tall.
  2. Breathing rate and the following volumes, TV, IRV, and ERV, will be measured in the subjects at rest and after 2 minutes of exercise.
  3. RV will be estimated using an equation, and minute ventilation will be calculated from breathing rate and TV.
  4. VC, IC, FRC, and TLC, will be calculated from TV, IRV, ERV, and calculated RV.
  5. Compare resting and post-exercise TV, IRV, ERV, VC, IC, FRC, TLC, breathing rate, and minute ventilation.

Predictions

Based on what you know, predict the outcome of the experiment. Complete the numbered statements below by choosing one response for each number.

When you are done, click the Submit button to save your responses to the laboratory report.

Congratulations

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Variables

Now determine the dependent, independent, and controlled variables for each experiment in this laboratory activity by clicking on the appropriate answers.

Check your answers until you have chosen all variables correctly. There will be one choice for Dependent and Independent Variables and multiple choices for Controlled Variables. When you are done, click the Submit button to save your responses to the laboratory report.