Low-frequency filter was 8 Hz, high-frequency filter was 3.2 kHz, duration of pulse was 0.1 ms, and rate of pulse was 1/s. Sensitivity, sweep speed, and the machine used were not specified.
This study was performed in the supine position.
Following the orthodromic method [
1], the median and ulnar sensory nerve conduction studies were performed. Finger to wrist sensory nerve conduction study (Fig.
1) and palm to wrist sensory conduction study (Fig.
2) were done orthodromically at the wrist. The active electrode (A) was placed proximal to the distal crease at the wrist; the reference (R) was placed proximally. The authors used a standard plastic bar electrode (interelectrode distance was 3 cm) placed over the nerve at the wrist with the orientation of the two recording electrodes along the line of the nerve. For the median nerve (R1), electrodes were placed between the tendons of the
flexor carpi radialis and the
palmaris longusmuscles (ideally...
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Joynt RL (1989) Differences in sensory conduction velocity between different sensory branches and segments of the median and ulnar nerves. Am J Phys Med Rehabil 68:210–214PubMedCrossRefGoogle Scholar