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Journal of the Korean Academy of Rehabilitation Medicine 1996;20(1):34.
Conduction Velocity of Motor, Cutaneous Afferent, Ia Afferent and Mixed Nerves in the Same Segment
Mikyung Ahn, M.D., Hee Kyu Kwon, M.D. , Hang Jae Lee, M.D.
Department of Rehabilitation Medicine, Korea University
운동신경, 표피감각신경, 근육구심성신경의 전도속도의 비교
안미경, 권희규, 이항재
고려대학교 의과대학 재활의학교실
Abstract

The mixed peripheral nerve consists of motor, cutaneous, and Ia afferent fibers. The animal study has shown that each fiber has different conduction velocity. To determine the conduction velocity of the different fibers, we measured the mixed nerve within the same segment in neurologically healthy adult subjects of 20. The motor conduction velocity was 53.17±4.63m/s; Cutaneous nerve, 58.85±4.91m/s; Ia afferent nerve, 64.31±7.61m/s; Mixed nerve, 63.71±5.50m/s. These results may implicate which fibers might contribute to the spinal reflex.

Key Words: Nerve conduction, Motor nerve, Sensory nerve, Mixed nerve, Ia afferent fiber


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