Concept explainers
The electrical activity of muscles can he monitored with an electromyogram (EMG). The RMS amplitude measurements of the EMG signal when a person is using the hand grip muscle to tighten the lid on a jar is given in the table below:
The RMS amplitude of the EMG signal satisfies the linear equation
(a) Using the data provided in the table, find the equation of the line for A(F).
(b) Sketch A as a function of F.
(c) Using the relationship developed in part (a), find the RMS amplitude for a muscle force of 200 N.
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