**9. Simulation for reading EMG signals generated by EMG simulator (EMG Lab)**

The program, which explains the graphic of the files obtained from the EMG simulator, is called EMGlab (EMGLAB software,2008). This program is built in MATLAB software and the description of run EMGlab in MATLAB command window as follows. The program runs in a single MATLAB window, which is divided into five panels: At the top is the signal panel, which displays a segment of the EMG signal. Below that is the template panel, which displays the MUAP templates. Below that on the left is the firing panel, which displays the firing patterns of the identified MUs. To the right is the close-up panel, which displays a section of the EMG signal at an expanded scale. At the very bottom is the navigation panel which displays a thumbnail of the EMG signal. The buttons on the edges of the panels are used to change the display characteristics .

Fig. 8 shows the output of EMGlab with data of EMG signal. It receives the data that are generated by EMG simulator and the practical measured data and explain the decomposition of the signal and register the data of this signal. The inserted symbols in the window are:

+, - zoom in or out vertically

376 MATLAB – A Fundamental Tool for Scientific Computing and Engineering Applications – Volume 1

**Figure 7.** Window for Selecting the Type of Electrode

**Table 2.** Standard Parameters of Muscle Human Arm

No. of MU

Fiber Density ( per mm2 )

**9. Simulation for reading EMG signals generated by EMG simulator** 

The program, which explains the graphic of the files obtained from the EMG simulator, is called EMGlab (EMGLAB software,2008). This program is built in MATLAB software and the description of run EMGlab in MATLAB command window as follows. The program runs in a single MATLAB window, which is divided into five panels: At the top is the signal panel, which displays a segment of the EMG signal. Below that is the template panel, which displays the MUAP templates. Below that on the left is the firing panel, which displays the firing patterns of the identified MUs. To the right is the close-up panel, which displays a section of the EMG signal at an expanded scale. At the very bottom is the navigation panel

biceps 400 15 0.0075 2 - 10 triceps 350 10 0.0055 2 – 9 deltoid 450 20 0.0085 3 - 11 extensor carpi radial 250 8 0.0035 1.5 – 8 flexor carpi ulna 100 5 0.0015 2 – 6

Fiber Area ( mm2 )

Range MU diameter ( mm )

Muscle name

**(EMG Lab)** 

<, > scroll left or right, and ||, | | zoom in or out horizontally

**Figure 8.** The Output of EMGlab for EMG Signal
