EMGlab - BIOE 415 Lab Report 5 Monday Section Introduction...

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BIOE 415 Lab Report 5 Monday Section Introduction In this lab, an electromyography circuit was built (from the previous biopotential amplifier setup). From a surface EMG, power is calculated instead of voltage - since hundreds and thousands of motor units all have action potentials contributing to output voltage. Power calculations are useful in determining the function (or lack thereof) of nerves associated with muscles. Surface EMG electrodes can be used to record muscle twitches in training people with prosthetics. Surface EMG’s in this lab were amplified and taken to power an electric motor. Methods The orientation of the subject’s arm was altered in this lab. The subject just flexed his bicep perpendicular to the table surface instead of lifting the table. Below is the biopotential amplifier set-up for our lab. The following circuit was appended to our amplifier.
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For 3.2.2 – We connected electrodes to my arm and tested it before I flexed my bicep. The isometric contraction was used to power the motor. After using the orientation (muscle flexion perpendicular to surface) we were able to coordinate the on/off states of the motor. Results
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This note was uploaded on 02/09/2010 for the course MSE 518248 taught by Professor Cahler during the Spring '10 term at University of Balamand.

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EMGlab - BIOE 415 Lab Report 5 Monday Section Introduction...

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