Please do the prelab in your notebook and do the prelab quiz on Laulima before class. This is an Individual Worksheet (IWS) lab, due next week.

This is a fun lab, where you will be able to collect an ECG on yourself — a print out of the electrical signals of your heart!

This week we will be looking at ECGs to further our understanding of the Cardiac Cycle. Think about how the heart works, breaking down what is happening at each component of the cycle. Please note the different types of parameters that are informative – pressure, electrical activity, volume, heart sounds, etc. and what they tell us.

Have fun and think about what kinds of hypotheses you can come up with to explain how your heart responds to exercise. Make sure you focus on physiological mechanisms (be specific!) and function. WHY are these things occurring?

Please watch this podcast and read through the lab manual posted below in preparation for lab this week:

Electrocardiogram Lab Manual

ECG Protocol

ECG Worksheet

In addition, we are providing some tables to help you with data collection this week:

ECG Data Table

We may be using the Vernier system. If so you can download the Vernier Graphical Analysis software to collect/visualize your data