Overview of Project:

Question:

How does the seat height of a bicycle affect a rider's muscle activity and heart rate?

Hypothesis:

The height of a bicycle's seat has a directly porportional relationship with the rider's level of muscle activity and heart rate.

Experiment:

A rider was chosen to run five seperate trials on a stationary bike to test our theory.  Each trial consisted of five minutes of continuous, steady 50 RPM pedaling.  After each five minute trial, a member of the group recorded the rider's muscle temperature with a temperature probe placed on the calf, and recorded heart rate based on electrical impulses read by EKG probes on the rider's arms. Time was taken between trials to allow rider's temperature and heart rate to return to resting levels, then the next trial proceeded.

Materials:


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