Electrode Placement

First Placement

For a first forearm test, place two measurement electrodes along the target muscle direction and place the reference electrode on a nearby bony or low-muscle-activity area.

Use wet electrodes first. They are more forgiving and make it easier to confirm that the signal chain works before testing dry electrodes.

Practical Tips

• Keep electrode contact stable during the test.
• Avoid placing electrodes across multiple unrelated muscles if you want a clean first signal.
• Move the setup away from chargers, monitors, and strong electrical noise.
• Use the Noise and Flatline guide if the waveform does not react to contraction.

Disclaimer

These notes are for education and electronics experiments only. They are not medical instructions.