Table 1 Intervention details of both groups
| Â | EA group | Sham EA group |
|---|---|---|
Acupoints | DU20, EX-HN1 BL18, SP6, LR3 | DU20, EX-HN1 BL18, SP6, LR3 |
Needle penetration | DU20, EX-HN1: 10 mm BL18, SP6, LR3: 15 mm | No needle penetration |
Needle stimulation | De-qi sensation | No de-qi sensation |
Electrostimulation | Current frequency: 2/100 Hz | No electrostimulation |
Needle retention time | 30 minutes | 30 minutes |
Treatment tools | Stainless steel needles and a PG-306 electroacupuncture device | A Park Sham Device with a PG-306 electric pulse generator with a cut wire inside |
Treatment frequency and duration | Three sessions per week, 4 weeks | Three sessions per week, 4 weeks |