Journal of the Korean Academy of Clinical Electrophysiology (대한임상전기생리학회지)

The Korean Academy of Clinical Electrophysiology (대한임상전기생리학회)
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Change of RIII Reflex of Primary and Secondary Hyperalgesia Site by High Voltage Pulsed Current

고전압맥동전류에 의한 일차 및 이차통각과민대의 RIII 반사의 변화

  • Kim, Su-Hyon (Dept. of Physical Therapy, Graduate School, Dongshin University) ;
  • Choi, Sug-Ju (Dept. of Physical Therapy, Graduate School, Dongshin University) ;
  • Lee, Jung-Woo (Dept. of Physical Therapy, Graduate School, Dongshin University) ;
  • Jeong, Jin-Gyu (Dept. of Physical Therapy, Jeong's FM Clinic) ;
  • Kim, Tae-Youl (Dept. of Physical Therapy, Dongshin University) ;
  • Kim, Gye-Yeop (Dept. of Physical Therapy, Dongshin University)
  • 김수현 (동신대학교 대학원 물리치료학과) ;
  • 최석주 (동신대학교 대학원 물리치료학과) ;
  • 이정우 (동신대학교 대학원 물리치료학과) ;
  • 정진규 (정 가정의학과의원 물리치료실) ;
  • 김태열 (동신대학교 물리치료학과) ;
  • 김계엽 (동신대학교 물리치료학과)
  • Published : 2006.03.31
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Abstract

This study conducted RIII reflex measurement to examine degree of pain depending on polarity of high voltage pulsed current of primary and secondary hyperalgesia site in hyperalgesia rat by local thermal injury. Hind paw which was injury site was taken as primary hyperalgeisa site, sole which was injury adjacent site was taken as secondary hyperalgesia site, and mechanical pain threshold, thermal pain threshold and root mean square of RIII reflex were measured. This study was conducted with control group I of hyperalgesia rat at hind paw by thermal injury and experimental groups divided into cathodal high voltage treatment group II, anodal high voltage treatment group III and alternate high voltage treatment group IV, applied active electrode of high voltage pulsed current to hind paw directly, placed reference electrode on the sole of injury adjacent site and applied pulse frequency. It measured RIII reflex and obtained the following results: Root mean square of RIII reflex at primary hyperalgeisa site was significantly reduced in group II after 2 days of hyperalgesia. Group II showed significant decrease after 5 and 6 days of hyperalgesia. Root mean square of RIII reflex at secondary hyperalgesia site showed significant reduction in group II after 6 days of hyperalgesia. Consequently it was found that application of high voltage pulsed current of hyperalgesia site reduced RIII reflex at primary hyperalgeisa site and secondary hyperalgesia site by electrical stimuli. Effects by polarity of high voltage pulsed current showed the greatest reduction of pain threshold when cathodal active electrode was used.

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