Which of these techniques measures muscle tension as an index of pain?
A) Electromyography
B) Thermography
C) Blood flow in the temporal artery
D) Heart rate

Question

Quizplus · Accepted Answer

Electromyography (EMG) measures the electrical activity produced by muscle fibers, which can be used as an index of muscle tension. Muscle tension is often associated with pain, so EMG can be used as a measure of pain. Thermography measures temperature changes in the body, blood flow in the temporal artery measures changes in blood flow, and heart rate measures cardiovascular activity, so none of these techniques specifically measure muscle tension as an index of pain.

Which of These Techniques Measures Muscle Tension as an Index