Laser Acupuncture for Pulmonary Function Test and Quality of Life in COPD Patients

Laser acupuncture irradiation was performed using an RJ Laser laserpen with a wavelength of 785 nm and an output power of 50 mW. The laser probe was positioned perpendicularly to the skin surface, using a continuous wave mode with a dose of 4 Joules. The acupuncture points targeted were EXB1 and CV17, as well as BL13 and ST36 on both sides of the body. Each point received irradiation for 1 minute and 20 seconds. During the therapy session, subjects wore a headset playing music and protective glasses. The treatment was administered twice a week for a total of 8 sessions.

Sham laser acupuncture irradiation was conducted using an RJ Laser laserpen with a wavelength of 785 nm and an output power of 50 mW at the acupuncture points EXB1 and CV17, as well as BL13 and ST36 on both sides of the body. However, the laser device was not activated, and no radiation was delivered to the patient. The laser probe was positioned perpendicularly to the skin surface at the same acupuncture points, but without activating the laser. During the session, subjects wore a headset with music and protective glasses, similar to the active treatment group. The sham treatment was administered twice a week for a total of 8 sessions.