Muscle coactivation is a phenomenon in which a muscle is activated coordinately with another muscle. The EMG shown demonstrates the antagonistic muscle activity in the biceps and triceps of a relaxed and seated subject, with the elbow bent at 90 degrees increase in the activity of the triceps. Likewise, there is a minor increase of activity in the biceps trace when the triceps is activated. Coactivation of the muscles stabilizes a joint, although the mechanism is not well understood. Muscular coactivation is thought to be required for fine movements.
The numerical value of muscle coactivation in Chaldean Numerology is: 4
The numerical value of muscle coactivation in Pythagorean Numerology is: 7
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"muscle coactivation." Definitions.net. STANDS4 LLC, 2017. Web. 20 Sep. 2017. <http://www.definitions.net/definition/muscle coactivation>.