Describe the changes in volume and pressure that will be occurring in Jane’s chest cavity to achieve exhalation during a long run. Explain why these changes are occurring, and the effect upon airflow.

Case Study: Jane Jane is a 38yo marathon runner who has presented to her GP clinic after completing a training run. She trains three days per week, and has experienced light-headedness, and significant muscle pain after her last three runs.Whilst talking to the clinic nurse, Jane admits to feeling lethargic, and like her “heart is […]