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A Study on the Characteristics of the Thermal Line Induced in the Limbs of a Human Body with a Pulse Light ACUP-Stimulation: New Meridian Phenomenon

Hyok Choe, ChungSong Kim, SunGyol Mun, YongGuk Pak, YongGun Kim, JinSong Jang, KumSok Li


As the essence is clarified through phenomena, so the essence of the meridian is explained through their phenomena. In the past, it was attempted to clarify the nature of meridian by exploring the mechanisms of the meridian, but the aim of the present study was not achieved because of the lack of universality of the phenomena of the existing meridian phenomena. The same was the case for the thermal line—the visualized meridians. The aim of the present study was to induce the universal thermal line by means of a novel acupoint stimulation method and to clarify some characteristics. The present study was conducted in 22 healthy volunteers (mean age ± SD 25.8±4.7; range 20–31 years). After some acupoints were stimulated with acupuncture (ACUP), moxibustion, and pulse light, respectively, infrared images of the limbs were recorded by an infrared camera (Flair C2, sensitivity 0.1°C in United States or FUJITSU 1200 in Japan). In addition, the development, origin, and radiation origin of the thermal line (meaning origin) were determined by tissue oxygen pressure and deep tissue temperature changes. The limbs of human body did not show thermal line when acupuncture and moxibustion stimulation were applied, but when pulse light acup-stimulation was applied, the thermal line was induced 3 min later, and lasted 60 min after the stimulation had stopped and this shape was similar to the classical meridian. In particular, the occurrence and recurrence rate of these thermal lines were 80% and 95%, respectively. Also, the radiation origin of the thermal line was muscle tissue. This is believed to have been the first universal thermal line to emerge with a pulse light acup-stimulation.


infrared thermology, meridian, meridian phenomenon, meridian-like thermal line, thermal line

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Wang Z, Chen P, Xie P. History and development of traditional Chinese medicine. Beijing: Science Press; 1999.

Heine H. Zur Morphologie der Akupunkturpunkte. Dtsch Zschr Akup. 1987; 4: 75–79p.

Nikolovski D, Ljubica K, Zoran S. Thermography of laser treatment at zusanli acupuncture point. J Chi Med Res Dev (JCMRD). 2012; 1: 12–15p.

Ovechkin A, Lee SM, Kim KS. Thermovisual evaluation of acupuncture points. Acupunct Electrother Res. 2001; 26: 11–23p.

Schlebusch KP, Maric-Oehler W, Popp FA. Biophotonics in the infrared spectral range reveal acupuncture meridian structure of the body. J Altern Complement Med. 2005; 11(1): 171–173p.

Zhang D, Gao H, Wei Z; Wen B. Preliminary observation of imaging of facial temperature along meridians. Zhen Ci Yan Jiu. 1992; 17: 71–74p.

Zhang D, Fu W, Wang S, Wei Z, Wang F. Displaying of infrared thermogram of temperature character on meridians. Zhen Ci Yan Jiu. 1996; 21: 63–67p.

Yin LS. Diagnosis, treatment and prevention of autism via meridian theory. Am J Chin Med. 2012; 40(1): 39–56p.

Litscher G. Infrared thermography fails to visualize stimulation-induced meridian-like structures. Biomed Eng Online. 2005; 38(4).

Hu X, Wu B, Wang P. Displaying of the Meridian course over Human Body Surface with the Thermal Imaging System. Rev Pau1 Acup. 1996; 2(1): 7–10p.

Xie YJ, Hu XL, Wu BH. Observation on the partial pressure of oxygen in deep tissue along the meridian course and the effect of acupuncture on it[J]. Zhongguo Zhong Yi Yao Ke Ji. 2000; 7(6): 353–354p.


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