Table 2 Details of intervention
| Â | Intervention group | Control group |
|---|---|---|
Acupoints | GV20, GV29, CV12, CV6, CV4, LI4, LR3, SP6, ST36 | GV20, GV29, CV12, CV6, CV4, LI4, LR3, SP6, ST36 |
Depth of insertion | GV20, GV29, LI4, LR3 10 mm | No insertion |
CV12, SP6, CV6, CV4, ST36 30 mm | ||
Needle type | Steel needle (Wuxi Jiajian Medical Co. Ltd. Wuxi, China) | Blunt-tip needle (Streitberger placebo-needle) |
Needle sensation | With de-qi sensation | Without de-qi sensation |
Electric stimulation | Needle on bilateral ST36 connected to SDZ-III Electronic Acupuncture Treatment Instrument (Hwato, China). with electric pulse at a frequency of 2.5 Hz and an intensity of 45 mA | Needle on bilateral ST36 connected to SDZ-III Electronic Acupuncture Treatment Instrument (Hwato, China). without electric pulse |
Frequency and duration | Twice per week for 6 weeks | Twice per week for 6 weeks |