Simultaneous surface and fine-wire EMG trace.

<p>Example of a single pulse motor evoked potential response in a single subject.</p

The relationship between sEMG and fEMG.

<p>Pretest data (top row) and posttest (bottom row). Data from 10 subjects, 10 trials/session/person, total of 100 data point in each plot. Note, the boxes on SICI graphs: fEMG responses cluster near 0 (y-distribution) while surface EMG response is more varied (x-distribution). Each color represents a single subject.</p

Normalized Group Change Scores.

<p>Normalized Group Change Scores.</p

Electrode and ground placement.

<p>sEMG was placed in a belly-tendon montage while fEMG was inserted near the active surface electrode. Both sets of electrodes were pre-amplified with two custom made amplifiers. The ground was wrapped around the wrist. sEMG = surface electromyography; fEMG = fine wire electromyography.</p

Agreement between sEMG and fEMG.

<p>Pretest data (top row) and posttest data (bottom row). Data from 10 subjects, 10 trials/session/person, total of 100 data point in each plot, 95% CI of limits of agreement (wide grey lines) and 95% CI of the mean (black lines).</p

Validity at Pretest and Posttest.

<p>Validity at Pretest and Posttest.</p