Intro - Exercise
The body is capable of exerting itself at a high level for many hours at a time (consider ultra-marathoners and Tour de France riders) and of exerting itself for short periods at extreme levels (consider sprinters and power lifters). This large demand on the body stimulates responses in all of its organ systems. In this case study, you can observe many of these physiological responses to exercise.
The first module provides a simple overview of some responses by the heart and lungs to exericse, with basic instructions on the user interface. Start with this module if you are new to JustPhysiology. The subsequent modules are more advanced, and each focuses on a different organ system or general physiological process.
The subject is a healthy 37 year-old male weighing 165 pounds.