Electromyography

Question 1

1. Describe the three different types of electromyography with emphasis on each one’s strengths and weaknesses.

Answer 1

• Surface EMG, assess muscle function

- Intramuscular EMG

Question 2

What is cross-talk and what form of EMG is most prone to it?

Answer 2

• Unwanted transfer of signals

- Surface EMGs

Question 3

To what physiological factors is surface EMG sensitive?

Answer 3

• Hair
• Muscle fiber
• Muscle length