Course 8 – EMG Samples Normal and Abnormal

As the name implies, if you have watched courses 6 and 7 above, you will now have the opportunity not only to see normal recordings of EMG waveforms, but also EMG recordings in pathology. Live recordings of abnormal EMG potentials seen in nerve and muscle diseases are shown here to help you better recognize these abnormalities and understand their significance in your needle EMG studies. These include fibrillations, positive waves, cramps, end-plate potentials, fasciculations, myotonic discharges as well as abnormal motor unit potentials such as polyphasic units, long duration “giant” potentials, and myopathy. This is a great conclusion to the Needle EMG examination courses.