Figure 2: Comparative effect of pre- and post-low-frequency EA treatment on sexual behavior of male rats. Mount latency (a), intromission latency (b), ejaculation latency (c), mount frequency (d), intromission frequency (e), and ejaculation frequency (f) in the male rats. The data are presented as mean ± standard error of the mean. **P < 0.01; ***P < 0.001, significant differences from EA group. Control: no treatment. Sham EA: Electroacupuncture at Sham EA acupoints with low-frequency electrical stimulation. EA: Electroacupuncture at Guanyuan (CV4) and Zhongji (CV3) with low-frequency electrical stimulation. Acupuncture: Acupuncture at Guanyuan (CV4) and Zhongji (CV3) without electrical stimulation. Pre-T: pretreatment.