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Journal of the Korean Academy of Rehabilitation Medicine 1990;14(2):27.
Quantitative Analysis of Motor Unit Action Potential using Suction Cup Electrode as Reference and Ground Electrode
Kyoung Min Lee, M.D., , Hyun Yoon Ko, M.D.
Department of Rehabilitation Medicine, Kosin Medical College
흡입전극(참고기록 및 접지전극)을 사용한 운동단위 활동전위의 정량적 분석
이경민, 고현윤
고신의대 재활의학교실

Suction cup reference and ground electrodes were investigated for alternative of commonly used disc type surface electrode in electrodiagnostic study. Quantitative elctromyograplhy (Q-EMG) to evaluate difference of motor unit action potentials (MUAP) using disc type suction cup electrodes for referencd and ground electrode alternatively was done.

There was no statistically significant difference of parameters (duration, amplitude, area, and rise time) of MUQP between the groups.(P<0.05). We conclude that the suction cup electrodes are not resulting in change of MUAP parameters. And electrophysiologic study can be performed more comfortably and rapidly by using the suction cup electrodes.

Additionally, normal values of duration, amplitude, area, and rise time of MUAP in first dorsal interosseus that analysed using the suction cup electrodes were 5.78±0.99 msec, 439.08±100.91 ㎶, 508.46±116.24 mV. msec and 1.12±0.31 msec, respectively and using disc type surface electrodes were 5.83±0.96 msec, 445.29±99.47 ㎶, 517.32 + 125.15 mV. msec and 1.09±0.37 msec, respectively.

Key Words: Q-EMG, MUAP, Suction cup electrode
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