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Journal of the Korean Academy of Rehabilitation Medicine 1992;16(3):287-290.
A comparative study of sensory nerve action potentials between median nerve and ulnar nerve in healthy adults.
Chung, Jin Sang , Chong, Soon Yeol , Ko, Young Ho , Ahn, Tae Soon
Department of Rahabilitation Medicine, College of Medicine, Konkuk University.
정상인의 약지에서 측정한 정중 신경 및 척골 신경의 감각 신경 활동전위 비교연구
정진상, 정순열, 고영호, 안태순
건국대학교 의과대학 부속병원 재활의학과
Abstract

Sensory nerve action postentials(SNAP) of median nerve and ulnar nerve were examined antidromically with ring electrode recording at the ring finger and stimulation at the wrist(distance 12cm) in 39 healthy adults(23 male, 14 female) and were compared according to distal latency, amplitude, duration of SNAP, respectively.

The results were as follows;

1) The mean values of distal latency of median/ulnar SNAP were 2.75 ⁑ 0.23 msec / 2.71 ⁑ 0.24 msec with no significant difference between the two nerves(P>0.05).

2) The mean values of amplitude of median/ulnar SNAP were 57.08 ⁑ 17.60 ㎶ / 44.58 ⁑ 21.14 ㎶ with significant difference between the two nerves(P<0.0001).

3)The mean values of duration of median/ulnar SNAP were 1.36 ⁑ 0.26 ⁑ / 1.37 ⁑ 0.22 msec with no significant difference between the two nerves(P>0.05).

4) The difference of distal latencies between median/ulnar SNAP was 0.14 ⁑ 0.15 msec

Key Words: Median and ulnar SNAP, Difference of distal latency


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