Abstract: A system for detecting and analyzing electrical activity in the anatomy of an organism underlying an electromyographic (EMG) sensor device provides signals corresponding to electrical activity adjacent each electrode of sensor device. A method using the system may comprise determining EMG data for a patient responsive to EMG signals detected from a detection area on a back of the patient using the EMG sensor device. The method may further include determining whether the determined EMG data for the patient corresponds to predetermined EMG data associated with at least one of a facet condition, a disc condition, and a muscle condition.