Objective

2

To observe the effects of various electric stone needle intervention programs based on factors such as rotation speed

time

and vibration on the body’s skin infrared thermal imaging and blood flow

and to explore the best solution for electric stone needling.

Methods

2

A three-factor two-level orthogonal table L8 (2

7

) was designed

and 80 healthy subjects were randomly assigned to 8 groups

each with informed consent.After the subjects entered the laboratory

they sat quietly for 5 minutes to adapt to the indoor environment and keep the indoor temperature constant.Neiguan(PC6) and Ximen(PC4) points on the route of the pericardium meridian of Hand-

jueyin

in the left forearm of the subject were marked.An instrument was used to detect the infrared thermal image and skin blood flow of the area between Neiguan(PC6) and Ximen(PC4) points before the intervention of the subjects

and the results were recorded. The operator held the Bianstone drill and moved evenly along the pericardium meridian in the direction and part of the left forearm from Quze(PC3) to Daling(PC7). During the operation

a moderate pressure perpendicular to the skin was applied

and the treatment plan of each group was strictly followed (different rotationspeed

time and vibration).The infrared thermal image and skin blood flow of the area between Neiguan(PC6) and Ximen(PC4) were immediately detected and recorded after the subject’s intervention. And the data were recorded 5 minutes

10 minutes

and 15 minutes later. Finally

statistical processing was performed.

Results

2

① There were significant differences between groups immediately after intervention and before intervention. All groups of infrared thermal imaging had significant statistical significances (

P

<

0.05). Except for the 5th and 6th groups

the blood flow changes immediately after the intervention were compared with those before the intervention

which were all statistically significant (

P

<

0.05). ② Each group showed no significant after-effects after the intervention

as compared with those before the intervention. Infrared thermal imaging and blood flow changes at 5 minutes

10 minutes

and 15 minutes after the intervention were not statistically significant

as compared with those before the intervention (

P

>

0.05).③ Through the analysis of the orthogonal experiment

it could be seen that the degree of influence of various factors on infrared thermal imaging was factor B(time)

>

factor A(rotation speed)

>

factor C(vibration)

and the degree of influence on blood flow was factor A(rotation speed)

>

factor B(time)

>

factor C(vibration). The results of analysis of variance showed that factor A (rotation speed) and factor B (time) were significant factors affecting infrared thermal imaging and blood flow

with statistical differences (

P

<

0.05)

among which the infrared thermal imaging results showed two levels of factor A(rotation speed)(factor B(time)

with statistical differences (

P

<

0.05).

Conclusions

2

① Electric stone needling has a significant immediate effect on the body’s infrared thermal imaging and skin blood flow; ② Factor A (rotation speed) and factor B (time) are significant factors affecting the body temperature and skin blood flow; ③ The best tone needle programs that affect body temperature and skin blood flow are high speed (1800 rpm)

long time (lasting 2 minutes)

and small vibration (shock amplitude is about 0.3 cm).