This document provides an overview of electromyography (EMG) including what it is, how it works, the types of electrodes used, and applications. EMG is a technique that evaluates and records the electrical activity of muscles using an electromyograph instrument. There are two main types of EMG electrodes: surface electrodes that measure potential from the skin surface using various attachment methods, and inserted electrodes like needle and fine wire types that are placed into muscles. EMG signals can be analyzed to detect medical issues or analyze human and animal movement biomechanics.

1. Topic – ElectroMyoGram (EMG)
Subject – BPI
Subject code – 2161712
Prepared by – Gandha Dhairya P. (180433117005)
Branch – IC
Semester – 6th

2. Electromyography (EMG)is an electrodiagnostic medicine
technique for evaluating and recording the electrical activity
produced by skeletalmuscles

3. EMG is performed using an instrument called an electromyograph
to produce a record called anelectromyogram

4. • The signalscan be analyzed to detect medical abnormalities,
activation level, or recruitment order, orto analyze the
biomechanics of human oranimal Movement
• An electromyograph detects the electric potential generated by
musclecells

5. EMG electrodes

6. There are two main types ofEMG
electrodes:
Surface (orskin electrodes) and Inserted
electrodes
Inserted electrodes have further two
types:
1.Needle and
2. Fine wire electrodes.

7. Surface electrode measuresthe potential available
from the surface of theskin.
1.Metal Plate Electrodes
2.Suction Cup Electrodes or Welsh Cup Electrodes
3.Adhesive Type Electrodes
4 . M u l t i p o i n t Type Electrodes
5.Floating Electrodes
6. Ear Clips a n d Scalp Electrodes

8. Surface electrode -Metal Plate
Electrodes

9. Surface electrode -Suction Cup Electrodes or Welsh
Cup Electrodes

10. Surface electrode - Adhesive
Type Electrodes

11. Surface electrode -Multipoint TypeElectrodes

12. Surface electrode -
Floating Electrodes

13. Surface electrode - Ear
Clips and Scalp
Electrodes

14. Inserted Electrodes
1. NeedleElectrode
2. FineWireElectrode

15. Inserted Electrodes -Needle
Electrode

16. Inserted Electrodes -Fine wire
Electrode

17. EMG Signal -Functioal Block Diagram

18. EMG
Sign
al

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