The machines used were a Nicolet Viking IV and a Dantec Key Point 4 electromyograph. Sensitivity, low-frequency filter, high-frequency filter, sweep speed, duration of pulse, and rate of pulse were not specified.
This study was performed in the supine position.
Following the orthodromic method [
1], for measurement of the direct forearm median mixed nerve amplitude and conduction velocity, signals were recorded proximally at the elbow (R), just above the crease of the antecubital fossa and medial to the biceps tendon (Fig.
1). The authors used a pair of 1-cm-diameter stainless steel disk electrodes. For the measurement of the derived forearm median mixed nerve conduction velocity, mixed responses were recorded at the wrist (R1), 8 cm proximal to the stimulating cathode, and proximally at the elbow (R2), just above the crease of the antecubital fossa and medial to the biceps tendon (Fig.
2). The reference (R) electrode was proximal. The ground (G)...
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