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Parameter of four different MA manipulations.
| MA manipulation | Frequency (Hz) | Operation of MA | Depth (mm) | Duration time (second) |
|---|---|---|---|---|
| Lifting-inserting manipulation | 0.5 1 2 3 |
Neutral reinforcement and reduction | 5–7 | 120 |
MA, manual acupuncture. Neutral reinforcement and reduction (see [24]), needle body is perpendicular to the skin, and the force and amplitude of displacement of lifting and inserting are uniform and the distance of lifting and inserting is 2-3 mm.
