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KMID : 1147720220150030174
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Journal of Acupuncture and Meridian Studies
2022 Volume.15 No. 3 p.174 ~ p.180
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Temperature Characteristics of Traditional Indirect Moxibustion and Electronic Moxibustion
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Kim Dong-Joo
Jo Hyo-Rim
Jang Han-Sol
Choi Seong-Kyeong
Jung Chan-Yung
Sung Won-Suk
Lee Seung-Deok
Lee Byung-Wook
Kim Eun-Jung
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Abstract
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Background: Electronic moxibustion (EM) was developed to minimize the side effects of traditional moxibustion, such as burns, and to overcome therapeutic compliances such as smoke or smell.
Objectives: To investigate distributions and thermal stimulation of EM at various depths using silicon phantom and to compare this methodology to traditional indirect moxibustion (TIM).
Methods: A silicon phantom composed of polydimethylsiloxane was heated and immersed in a hot plate containing warm water to set the phantom’s temperature to that of biological tissue. K-type thermocouples were inserted into the phantom at depths of 0, 2, 5, 7, and 10 mm to measure temperature changes with thermal stimulation of EM or TIM placed on top of the phantom.
Results: At the surface of the phantom, the peak temperature after applying TIM (55.04 ± 0.92℃ [Δ23.79 ± 0.96℃]) was significantly higher than after EM (43.25 ± 1.95℃ [Δ13.00 ± 2.23℃]), with both interventions reaching the highest temperature after 2 minutes. The temperature increase for TIM was also statistically significant compared to EM when measured at a depth of 2 mm. For the experimental setting with TIM, after reaching peak surface temperature, a rapid decrease was observed at the surface and 2 mm while EM showed a much more gradual decline. There was no significant difference in temperature change between the groups at depths of 5, 7, and 10 mm.
Conclusion: TIM resulted in a higher temperature rise compared to EM at the surface and at a 2 mm depth reaching over 50℃, which creates risk of burns. Thermal stimulation with EM had a lower risk of burns with temperature increment not being statistically different from TIM below the depth of 5 mm.
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KEYWORD
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Electronic moxibustion, Moxibustion, Thermal therapy, Temperature distribution, Bioheat transfer
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