Muscle Function Analysis

What do all of these activities have in common?

TENNIS

TYPING

PIANOPLAYING

What do all of these activities have in common?

They all involve repetitive motions of the muscles of the forearm and elbow. Inflammation of the tendons connected to these muscles can result from overuse. This inflammation is called “tennis elbow” and can be treated with a wrist band.

Muscles of the forearm

What you will do?

In this experiment, you will . . . • Obtain graphical representation of the electrical activity

of a muscle.• Associate muscle activity with movement of joints.• Correlate muscle activity with injury.

Figure 5

Make A Prediction

Figure 3

Make A Prediction

Figure 3

Typical EMG Reading

References

• http://www.pep-web.org/document.php?id=ijp.087.1335.fig002.jpg

• http://www.dataq.com/images/article_images/electromyogram/emg.jpg