1. Choose to discuss either acute or chronic adaptations to the circulatory and respiratory systems. For ease of discussion, include your choice in the thread title. 2. Include a brief introduction on the role of these systems (circulatory and respiratory) during exercise. 3. Identify the following variables and how they change (either with acute exercise or long-term training). You can show this however you like, but a table or chart may be useful. a. Cardiovascular: Heart Rate, Stroke Volume, Cardiac Output, Blood Pressure b. Respiratory: Tidal Volume, Minute Ventilation, Breathing Frequency 4. Explain why it makes sense that these variables change/adapt as they do. What would happen if they did not adapt?