Finger Gestures vs. EMG Electrode Placement

Congrates to be able to gather raw EMG data from the SpikerShield! While you are picking up MATLAB, we also need to figure out the EMG electrode placement as soon as possible such that we can start acquiring meaningful data. There are three documents in our the Project Resource page, which potentially provide us the info we need.

1. Finger Motion Decoding Using EMG Signals Corresponding Various Arm Postures (2010), Kyung‐Jin You, Ki‐Won Rhee and Hyun‐Chool Shi
2.  Relating Forearm Muscle Electrical Activity To Finger Forces (2014), Jennifer Keating. [page 22-23, 62-84]
3. Forearm Muscle Labels.

The simple questions we want to start with are: "In order to detect the movement (bending and stretching the finger) of individual finger,

1. what are the most important muscle(s) related to the movement (bending and stretching) of individual fingers?
2. How many electrodes (or electrode pairs) do we need? And,
3. where should we place those electrodes (or electrode pairs)?"

Can your team look into them, extract useful info, and summarize the results into two tables (bending and stretching)? The tables should at least consist of the following columns: Finger, Muscles (names & symbols), Category (deep or superficial), Type (extension or flexion), Location (anterior or posterior), Electrode Placement (labels matching the diagrams), and Comments.

 

The exact electrode placement (position and orientation) should be labeled and indicated in the following tow diagrams (anterior view & posterior view) and matching the electrode placement in the tables.

Forearm muscles of anterior compartment: superficial, middle, and deep

Forearm muscles of posterior compartment: superficial, middle, and deep

You can contact me through email/blog whenever you have any question. Don't forget to post your results onto your blog and we will discuss our next step (data acquisition) based on the results after the break.