Table 1 Treatment methods of electroacupuncture and acupoints
EA group | SEA group | |
|---|---|---|
Acupoints | Hegu (LI4), Neiguan (PC6), Zusanli (ST36), Liangqiu (ST34) | Non-acupoints as shown in Table 3 |
Depth of insertion | 10 mm:LI4 PC6;30 mm:ST36 ST34 | Superficial acupuncture |
Needle type | Steel needles (Wuxi Jiajian Medical Co. Ltd. Wuxi, China) | The same as EA group |
Needle sensation | With de-qi sensation | Without de-qi sensation |
Electric stimulation | Two pairs of needles: | Two pairs of needles: |
LI4–ST36 (bilaterally) | LI4–ST36 (bilaterally) | |
Connected to CMNS6-1 (Wuxi Jiajian Medical Device CO., China) | Connected to CMNS6-1 (Wuxi Jiajian Medical Device CO., China) | |
Deliver continuous wave-type low-frequency 2 Hz and current of 2 mA | No electrical current delivered |