LASER THERAPY
Online ISSN : 1884-7269
Print ISSN : 0898-5901
Original Article
Yellow laser acupuncture - A new option for prevention and early intervention of lifestyle-related diseases: A randomized, placebo-controlled trial in volunteers
Daniela LitscherGuangjun WangIngrid GaischekLu WangSandra Wallner-LiebmannErwin Petek
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JOURNALS FREE ACCESS

2015 Volume 24 Issue 1 Pages 53-61

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Abstract

Background and aims: The yellow laser constitutes a totally new option in the field of laser acupuncture, in addition to the already existing red, near infrared, green and violet lasers. Especially for so called lifestyle-related diseases, this could open up new methods of integrative therapy. The goal of the present study was to investigate among other parameters blood pressure (BP), heart rate (HR), heart rate variability (HRV), and temperature effects before, during, and after stimulation of different acupoints with yellow laser.
Subject and methods: We recruited 26 healthy volunteers (13 female, 13 male; mean age ± SD 24.1 ± 3.3 years) at the Medical University of Graz. The acupoints Baihui, Neiguan, Taichong and a placebo point were stimulated with a 589 nm (50 mW, 500 μm; 5 min) yellow laser. Blood pressure was measured noninvasively at the wrist; for the registration of the electrocardiogram a medilog AR12 HRV system was used. Effects on temperature were measured with a Flir i7 infrared camera.
Results: There were significant decreases after yellow laser acupuncture in the systolic BP, diastolic BP also decreased (n.s.). HRV in both (men and women) increased. The temperature during the yellow laser stimulation decreased significantly in all measured points. After the stimulation it increased again significantly. Based on a questionnaire volunteers reported a significantly decreased level of stress after yellow laser stimulation.
Conclusions: Significant positive effects on BP and well-being were found after yellow laser stimulation. The results are very promising and can be very important especially for the treatment of lifestyle related diseases.

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© 2015 Japan Medical Laser Laboratory
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