| Number of Volunteers | Blindness | Number of Channels | Stimulated acupoints | Stimulated Sham Points | Stimulation Period | Technique Used For Analysis | Results | |
| Rosted 2001 [17] | 14 | Blinded | 1 | LI4 | Yes | Manual | Spectral analysis using FFT | No significant changes |
| Chen 2006 [11] | 12 | Blinded | 124 | LI4 | Yes | EA | Spectral analysis using FFT | Significant change with high frequency |
| Litscher. 2006 [12] | 9 | Partially double blinded | 124 | GV20, Ex.1, Ex. 9, He7, Pe6, CV6, St36, Sp6 | None | Manual and laser | Spectral analysis | Significant changes at sedative points |
| Sakai 2007 [15] | 16 | Not blinded | 19 | Ant fibers of trapezius muscle | Spectral analysis using FFT | Significant changes | ||
| Tong, 2008 [16] | 6 | Blinded | 16 | LI4 | Yes | EA versus manual | Spectral edge frequecy analysis | Significant changes with manual acupuncture |
| Streitberger 2008 [14] | 20 | Single blinded | 124 | LI4 | Yes | Manual | Spectral analysis | Significant changes |
| Chang 2009 [10] | 6 | Blinded | 12 | PC6 | Yes | Manual | Spectral analysis | Significant changes |