Research Article
Therapeutic Effect of Superficial Acupuncture in Treating Myofascial Pain of the Upper Trapezius Muscle: A Randomized Controlled Trial
Figure 3
Serial changes in pressure pain threshold PPT, kgf/cm2. <0.05 versus DAY 1 (PRE); #P<0.05 versus DAY 1 (POST); §P<0.05 versus DAY 14. Error bars represent standard deviations.