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KMID : 0352519840210010207
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Korea Univercity Medical Journal
1984 Volume.21 No. 1 p.207 ~ p.221
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A Study of F wave in Healthy Korean
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宋順慶/Song, Soon-Kyung
吳貞姬/Oh, Chung-Hie
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Abstract
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The F wave study has clinically appeared to be a useful method to evaluate several neurologic disorders. In electrodiagnostic examination, F save is particularly important when its latency represents the passage of the impulse to and from the spinal cord through the proximal segment of the nerve. The proximal segment of the nerve cannot be evaluated by conventional technique for measuring nerve conduction velocity in peripheral nerves due to problems of accessibility.
This study was conducted to determine the normal values of F wave latencies and conduction velocities in normal healthy Korean. The median, ulnar, peroneal and tibial nerves were studied bilaterally in 319 subjects (male; 241, female; 78), ranging from 10 to 69 years of age.
The results were summarized as follows:
i. A total of 284 median nerves was studied and the mean value of F wave latency (elbow to spinal cord) was 24.422.38(18.3530.90) msec, and that of its conduction velocity was 60.858.27(45.2799.70) M/sec.
2. A total of 284 ulnar nerves was studied and the mean value of F wave latency (elbow to spinal cord) was 25.372.76(18.0832.20) msec, and that of its conduction velocity was 59.37-4.64(43.60101.33) M/sec.
3. A total of 370 peroneal nerves was studied and the mean value of F wave latency was 43.194.79(28.3254.60) msec, and that of its conduction velocity was 5=1.15--9.23(42. 76103.21) M/sec.
4. `3 total of 370 tibial nerves was studied and the mean value of F wave latency was 44. 184.54(25.6455.86) msec, and that of its conduction velocity was 53.865.05(43.3372.48) M/sec.
5. No statistical variation was noted with advancing age in F wave latency and conduction. velocity in each of the nerves.
6. There were no significant differences related to the dominance of the extremities in each . of the nerves.
7. In F wave conduction velocities, there were no significant differences between sexes in median, ulnar and tibial nerves, although there were some differences between sexes in F wave latencies of each of above nerves. There were,no sig´nificalt sex differences either in latency or in conduction velocity for peroneal nerve.
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