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Journal of the Korean Academy of Rehabilitation Medicine 1997;21(4):709-712.
An Experimental Study of F Wave Morphology.
Han, Tai Ryoon , Yoon, Kisung , Lim, Jae Young , Lee, In Sik
1Department of Rehabilitation Medicine, Seoul National University College of Medicine, Korea.
2Department of Rehabilitation Medicine, Dong-A University College of Medicine, Korea.
F 파 형태에 대한 실험적 연구
한태륜, 윤기성*, 임재영, 이인식
서울대학교 의과대학 재활의학교실 및 동아대학교 의과대학 재활의학교실*
Abstract

The characteristics of the surface recorded F responses including minimal latency, mean latency, amplitude, duration, area and shape were investigated in the posterior tibial nerves of rabbits. During a train of 100 stimuli, each F wave was divided by the recurrence of shape into repeaters and nonrepeaters. There was no significant difference between the parameters of repeaters and nonrepeaters such as mean latency, minimal latency, amplitude and area. These findings suggest that the associated discharges of motor neurons generating the repeaters of F wave represented no definite distinctions from that of nonrepeaters in the aspect of the neuron size or the number of neurons contributing to each parameters of F wave. After the sciatic nerve was exposed, it was minimally injured by compression and then F responses were studied. Mean latency and minimal latency were prolonged, and amplitude and area were diminished in post-injured group. The frequency of repeater waves was increased but was not a useful parameter in the assessment of injury model due to a wide range of normal value.

Key Words: F wave, Shape, Repeater, Crushing injury


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