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J Korean Neurol Assoc. 1995;13(3):536-542.
- A Study on F Wave in Amyotrophic Lateral Sclerosis
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Kwang Soo Kim, M.D., Kyung Mu Yoo, M.D.
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Department of Neurology, Kosin Medical College
- 근위축성 측삭경화증에서 F파에 대한 연구
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김광수, 유경무
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고신대학교 신경과
- Abstract
- F waves are motor responses produced by antidromic activation of motoneurons following stimulation of motor axons peripherally. The F wave is useful in evaluating proximal motor nerve conduction, in assessing the integrity of the ventral root, and in measuring the motor neuron excitability.
This study was undertaken to assess the integrity of the lower motor neurons in
amyotrophic lateral sclerosis(ALS). F-wave latency(FWL), F-wave conduction
velocity(FWCV), F ratio, F-response frequency, and distal MNCV were determined in
the median and tibial nerves of 9 patients with ALS. The results were compared with
32 healthy adult volunteers as controls. In patients with ALS, in contrast,to the control
subjects, the mean FWL was prolonged, the mean FWCV and distal MNCV slowed, and
the mean F-response frequency reduced. These results are thought to reflect some
degree of loss of the lower motor neurons.
Keywords :
- 초록
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