He or she will give you instructions on resting and contracting a muscle at appropriate times.
The needle electrode may cause discomfort or pain that usually ends shortly after the needle is removed.ĭuring the needle EMG, the neurologist will assess whether there is any spontaneous electrical activity when the muscle is at rest - activity that isn't present in healthy muscle tissue - and the degree of activity when you slightly contract the muscle. When the study is underway, the surface electrodes will at times transmit a tiny electrical current that you may feel as a twinge or spasm.
