Transcutaneous Electrical Acupoint Stimulation on Blood Pressure

Participants will receive proper transcutaneous electrical acupoint stimulation treatment for three consecutive days. Each day, the selected five target acupoints (Renying, Quchi, Taichong, Zusanli, and Hegu) will be stimulated in rotation. Each acupoint will be stimulated once a day for 10 minutes, with a 2-minute interval between each acupoint, totaling 60 minutes. Throughout the trial, the stimulation parameters for each participant will remain constant, and the treatment will begin between 8:00 and 10:00 AM each day.

Participants will receive sham stimulation treatment, where the left-side skin near the selected five target acupoints (avoiding other functional acupoints) will be stimulated in rotation. The stimulation time and method will be the same as in the experimental group. Throughout the trial, the stimulation parameters for each participant will remain constant, and the treatment will begin between 8:00 and 10:00 AM each day.