Question

An EMG acquires signals by the relaxing muscle fibers.

(a) True

(b) False

This question was addressed to me by my college director while I was bunking the class.

My doubt is from Electromyography in portion Diagnostic Investigation in Neurology and Cardiology of Clinical Science

Answer 1

Right answer is (b) False

The explanation is: When the muscles receive impulses, they work by contracting. Thus, we can say that contraction is an active process where energy is expanded while muscle straightening is a passive process where the muscle goes back to their original shape and structure. Thus, impulses are generated in the contraction process and thus are recorded by the electrodes.