Enhanced EMG Mode is made possible by INSiGHT’s Digital Signal Processing capabilities. In Enhanced mode, your sEMG scans measure the amount (amplitude) of muscle energy in the paraspinal muscles as well as the type of energy the muscles are emitting. The type of energy changes with muscle fatigue, changes in active muscle fiber types and various clinical conditions. The INSiGHT™’s Enhanced EMG mode detects the type of energy by measuring the frequency of the EMG signal.
The Enhanced EMG mode Static scanning window is illustrated below:
A red and blue signal will move across the graph, indicating the level of the signal being recorded. As the signals move across the graph, you will see some activity in the grids on the left and right. These grids display the frequency of the EMG signal. The red and blue signals will continue across the graph until a reading is taken. Once you take a reading, the red and blue signals will begin again moving from left to right and the voice prompt will state the next level. Always wait for the signal to stabilize prior to taking a new reading. Dip the EMG sensors in alcohol as needed during the scan.
The left and right frequency grids in the above illustration, display left and right frequency components detected by the sEMG sensors.
Enhanced Static EMG Mode also uses an enhanced signal processing technique that provides faster signal stabilization and also allows the myINSiGHT software to filter out unwanted electrical signals during a sEMG scan.
Enhanced EMG Mode can be disabled by clearing the check box next to Enhanced on the EMG Scan Screen.
For wired EMG sensors, Auto Scan is the default once you click Begin Scan and place the sensors on the patient the system will begin collecting scan data automatically. For wireless sensors, see below.
When the scan is complete myINSiGHT will prompt you to save the scan. Click YES to save the scan or NO to continue and re-scan levels.