Effect of Acupuncture on Muscle Endurance in the Female Shoulder Joint: A Pilot Study

Figure 2

EMG data collected before and after acupuncture during flexion/extension and adduction/abduction of the shoulder joint. Note: : muscle activity of the shoulder joint during the adduction and abduction (AD/AB) exercise before acupuncture; : muscle activity during shoulder adduction and abduction (AD/AB) after acupuncture; : muscle activity of the shoulder joint during extension and flexion (EX/FL) before acupuncture; : muscle activity during extension and flexion (EX/FL) after shoulder joint acupuncture. Data are expressed as the mean ± SD with five muscles in each group. The significance level () was set to be . DA = deltoid anterior; DP = deltoid posterior; PS = pectoralis major; ID = infraspinatus; TC = triceps brachii.