Figure 4From: The immediate effects of local and adjacent acupuncture on the tibialis anterior muscle: a human studyElectromyography (EMG) of a single subject in the adjacent point SP9 group. A = EMG before acupuncture. B = EMG after acupuncture. In the x axis the duration is 5 seconds. In the y axis the amplitude scale is 33 μV in A and 25 μV in B.Back to article page