Number of Volunteers

Blindness

Number of Channels

Stimulated acupoints

Stimulated Sham Points

Stimulation Period

Results

Cabıoğu

(2016) [11]

17

Not blinded

21

GV20

Yes

Manual

Relaxation Effect

Rosted (2001) [17]

14

Blinded

1

LI4

Yes

Manual

No Significant Changes

Chen (2006) [11]

12

Blinded

124

LI4

Yes

EA

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

Significant Changes at Sedative Points

Sakai (2007) [15]

16

Not blinded

19

Ant fibers of trapezius muscle

Significant Changes