Sensitivity was 10 μV/division, low-frequency filter was 32-Hz, high-frequency filter was 8 kHz, sweep speed was 2 ms/division, and duration of pulse was 0.2 ms. Rate of pulse and the machine used were not specified.
This study was performed in the supine position.
Following the antidromic method [
1], signals were recorded using ring electrodes at digit III (Fig.
1). The active recording electrode (A) was placed on the first interphalangeal joint of digit III (middle finger), 9 cm from the stimulating cathode (−) at midpalm level (S2) along a line pointing to the midline of the distal wrist crease. The reference electrode (R) was positioned 2 cm distally on the second interphalangeal joint of digit III. Ground (G) was placed on the dorsum of the hand (the figure shows the ground electrode placed on the palm).
Digital Public Health Neurology
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