EMG Analysis

EMG Analysis

Another assessment tool that we use is called EMG analysis. We use mainly in shoulder evaluations, along with the Isokinetic testing we mentioned before. 

EMG stands for electromyography.  It is the study of muscle electrical signals.  EMG is measured using similar techniques to that used for measuring EKG, EEG or other electrophysiological signals.  Electrodes are placed on the skin overlying the muscle.  Once these electrodes are placed, we ask you to perform several movements and the EMG will record the muscle activity during the movements and during the rest periods.

This form of assessment gives us information about which muscles are inactive or overactive, and gives us the information we need to correct these imbalances.  Imbalances cause incorrect movement and the body then moves in such a way that may put at risk for injury, or may already have caused pain and injury.  So, this is a vital instrument in our assessment.

Here are some links again to sites about EMG testing if you would like extra information.

http://www.medicinenet.com/electromyogram/article.htm

http://www.noraxon.lunarpages.net/semg/faq.php3