• 한국콘텐츠학회논문지
• /
• 제11권10호
• /
• pp.286-292
• /
• 2011

본 연구는 토끼골절모델에 미세전류자극(직류, 음극), 고전압 맥동직류 음극과 양극을 이용해 골절치유정도를 살펴보았다. 방사선 검사에 의한 육안 계측은 미세전류자극군이 고전압 맥동직류의 음극과 양극 통전군보다 골절치유척도 점수에서 통계학적으로 유의한 차이를 보였으나(p<0.05), 고전압 맥동직류 음극군과 양극군 사이에는 유의한 차이가 없었다(p>0.05). Hematoxylin-Eosin 염색과 Masson's trichrome 염색을 통한 병리조직표본 차이는 미세전류자극군에서 무층골의 증식이 다른 두 실험군보다 더 활발하게 관찰되었으며 연골내골화 과정도 다른 두 실험군에 비해 더 빠른 것으로 관찰되었다. Osteocalcin 면역조직화학 염색은 미세전류자극군이 골모세포, 골세포, 파골세포 및 골기질 내에서 면역양성반응이 다른 두 실험군보다 더 명확히 관찰되었다.

• 한국전문물리치료학회지
• /
• 제3권3호
• /
• pp.67-81
• /
• 1996

This study was performed to assess the efficacy of high voltage pulsed galvanic current for the healing of wounds in rabbits. Skin wounds were created laterally on the flank of 12 domestic rabbits($3{\times}3cm$). The wounds of each group were treated with an intensity of 170 V at a frequency of 70 pulses per second, which was applied for 30 minutes a day for 10 days. The experimental groups were randomly assigned to either EXP I (n=3), EXP II(n=3), EXP III(n=3) or control(n=3). Each group was stimulated under the following conditions : 1) EXP I (Negative polarity), 2) EXP II (Change in polarity, negative electrode stimulation during the first 3 days and then positive electrode stimulation from 4 to 10 days), 3) EXP III(Positive polarity), 4) control(No stimulation). An active electrode was placed over the wound and a dispersive electrode on the buttock. The rate of wound closure was compared with the original wound size, evaluated by a tracing film in each measurement period. Finally, on the wound in each group, skin tissue was excised for histological evaluation after treatment for 10 days. The results obtained are as follows : 1) It was found that the control group did not show a complete remodeling of epitherial layer and had a chronic inflammatory response. Judging from the irregularity of intercellular space and the loose alignment of connective tissue, these findings show that wound healing was delayed. 2) EXP I showed a significant bactericidal effect, but a moderate response of vasodilation. The rate of wound closure was slower when compared with EXP II, III. 3) EXP II showed a complete remodeling of epitherial layer and a positive repair of connective tissue. Its rate of wound closure was best when compared with the others. 4) EXP III had a slower rate of wound closure than EXP II, but judging from the greater proliferation of collagen fibers and the dense alignment of connective tissue, this positive electrode was very effective in the formation of neo - connective tissue.

• The Journal of Korean Physical Therapy
• /
• 제9권1호
• /
• pp.51-57
• /
• 1997

The purpose of this study was to determine the effect of two different forms of transcutaneous electrical nerve stimulation(TENS) and one of microcurrent high voltage pulsed galvanic current(HVPC) on sympathetic tone in healthy subjects. Fourty subjects received TENS(20) and PVPC(30) during short time(20min). Left finger tip skin temperatures were measured at four interval for each treatment : 1) before treatment, 2) after 10 minutes treatment, 3)after 20 minutes treatment, and 4) after 10 minutes rest. The results were as follows. 1) TENS treatment group increased skin temperature after treatment 20 minutes, but HVPC treatment increased akin temperature after 10 minutes and recovered normal skin temperature after 10 minutes treatment. It means that short time(20min) electrical stimulation decreased sympathetic activities. 2) Sympathetic activities of TENS stimulation were influenced by age, but HVPC were not. 3) During 10 minutes, both treatment increased sympathetic activities, but HVPC treatment reversed sympathetic activity more rapidly than TENS. 4) The changes of skin temperature means by sex, males in TENS treatment group were higher than females, but HVPC were reverted.