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Journal of Chinese Integrative Medicine ›› 2006, Vol. 4 ›› Issue (3): 260-264.doi: 10.3736/jcim20060308

• Original Experimental Research • Previous Articles     Next Articles

Volt-ampere characteristics of Yuan points of three yin channels of hand in women before, during and after menstruation

Jian-zi Wei1, Ai-mei Zhang2, Xue-yong Shen1, Yu Zhou1, Ling Zhao1, Yu Zhou1   

  1. 1. College of Acupuncture, Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
    2. Population PlanningPopulation Planning Office , Building Group Company of Zhongyuan Oil Field, Puyang , Henan P rovince 457001, China
  • Online:2006-05-31 Published:2006-05-15

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Objective

To observe the changes of volt-ampere characteristics of Yuan-Primary acupoints in women before, during and after menstruation, and to find out the relationships between Qi-blood in human body and volt-ampere characteristics of acupoints, so as to develop a new method for quantitative analysis on changes of Qi-blood.

Methods

A high-sensitive detection system of volt-ampere characteristics of acupoint was applied to detecting the volt-ampere characteristics of Taiyuan (LU 9), Daling (PC 7) and Shenmen (HT 7) in healthy women before, during and after menstruation.

Results

The resistances on LU 9, PC 7 and HT 7 with some certain scan currents were quite different among the women before, during and after menstruation. For such changes, PC 7 was of the most obvious change, LU 9 was of the less and HT 7 was of the least. The total ratio of the scanning spots with significantly increasing changes of resistances on these three acupoints along with the menstrual process was 70.6%.

Conclusion

The volt-ampere characteristics of acupoints vary with the menstrual process, which is of the acupoint specificity. The resistances on the acupoints increase with the menstrual process, and such results may be due to the blood loss during menstruation. The volt-ampere characteristics can be used as a quantitative index to study on the change of Qi and blood.

Key words: Menstruation, Qi-blood, Yuan (source) points, Volt-ampere characteristics

CLC Number: 

  • R224.2

Figure 1

Schematic diagram of hardware for volt-ampere characteristics detection system"

Table 1

Skin resistance on Taiyuan (LU 9) and Shenmen (HT 7) with stepwise increasing scan current in healthy women before, during and after menstruation（ヌ±S, mΩ）"

Time n Taiyuan (LU 9) n Shenmen (HT 7)
2.4 μA 3.1 μA 4.9 μA 5.6 μA 6.2 μA 6.8 μA
Before menstruation 35 1.127±0.821 1.117±0.724 0.913±0.639 0.744±0.536 0.814±0.500 18 0.714±0.563
During menstruation 24 1.460±1.083 1.385±1.001 1.103±0.807 0.934±0.608 0.889±0.563 17 1.145±0.538*
After menstruation 23 1.772±1.402* 1.767±1.437* 1.502±1.369* 1.362±1.072** 1.275±1.062* 8 0.941±0.553

Table 2

Skin resistance on Daling (PC 7) with stepwise increasing scan current in healthy women before, during and after menstruation（ヌ±S, mΩ）"

Time n Daling (PC 7)
2.1 μA 3.3 μA 4.3 μA 4.6 μA 6.4 μA 6.8 μA
Before menstruation 20 1.593±0.874 1.200±0.680 1.157±1.092 1.240±0.813 0.906±0.622 0.761±0.516
During menstruation 16 1.335±1.100 1.351±1.025 1.541±1.085 1.100±0.882 1.213±0.713 1.179±0.645
After menstruation 11 0.758±0.875* 0.567±0.627*△ 2.112±1.028* 0.606±0.772* 0.474±0.487△△ 1.524±0.985**

Table 3

Skin resistance on Taiyuan (LU 9) with stepwise decreasing scan current in healthy women before, during and after menstruation（ヌ±S, mΩ）"

Time n Taiyuan (LU 9)
2.7 μA 2.9 μA 4.6 μA 5.7 μA 7.0 μA
Before menstruation 35 1.329±0.914 1.306±0.935 1.320±0.923 1.254±0.855 1.366±1.002
During menstruation 24 2.001±1.220* 1.931±1.316* 1.842±0.979 1.796±1.021* 1.720±1.079
After menstruation 23 1.676±1.203 1.860±1.090 1.997±1.224* 1.806±0.983* 2.066±1.492*

Table 4

Skin resistance on Dailing (PC 7) with stepwise decreasing scan current in healthy womenbefore, during and after menstruation (to be continued)（ヌ±S, mΩ）"

Time n Daling (PC 7)
2.4 μA 2.5 μA 2.7 μA 2.8 μA 3.0 μA
Before menstruation 20 1.628±1.178 2.720±1.690 2.909±1.971 1.569±1.087 1.724±1.047
During menstruation 16 2.067±1.731 1.535±0.999* 1.715±1.033 2.666±1.458* 1.720±1.079*
After menstruation 11 3.014±1.824* 1.568±1.297* 1.450±0.930* 2.317±2.096 2.107±1.969

"

Time n Daling (PC 7)
3.2 μA 3.7 μA 4.7 μA 4.9 μA
Before menstruation 20 1.679±0.940 1.549±0.873 1.698±1.181 1.759±0.846
During menstruation 16 2.730±1.441* 2.163±1.473 2.596±1.180* 2.442±0.902*
After menstruation 11 2.253±1.746 2.552±1.294* 2.364±1.382 2.472±0.974*

Table 5

Skin resistance on Shenmen (HT 7) with stepwise decreasing scan current in healthywomen before, during and after menstruation（ヌ±S, mΩ）"

Time n Shenmen (HT 7)
2.2 μA 3.2 μA 3.8 μA 6.4 μA
Before menstruation 18 1.901±0.930 1.486±1.212 1.450±1.452 1.227±1.203
During menstruation 17 1.467±1.292 2.330±1.370* 1.532±0.906△ 2.026±1.140*
After menstruation 8 2.678±1.448△ 1.768±0.923 0.803±0.361△ 1.347±0.588
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