title: Use of pupil size to determine the effect of electromagnetic acupuncture on activation level of the autonomic nervous system.
abstract: Magnetic fields are widely considered as a method of treatment to increase the therapeutic effect when applied to acupoints. Hence, this study proposes a new method which creates significant stimulation of acupoints by using weak magnetic fields. We conducted this experiment in order to confirm the effect on the activation level of the autonomic nervous system by measuring pupil sizes in cases of stimulation by using manual acupuncture and electromagnetic acupuncture (EMA) at BL15. We selected 30 Hz of biphasic wave form with 570.1 Gauss. To confirm the biopotential by the magnetic flux density occurring in EMA that affected the activation of the autonomic nervous system, we observed the biopotential induced at the upper and the mid left and right trapezius. We observed a significant decrease in pupil size only in the EMA group (p < 0.05), thus confirming that EMA decreased the pupil size through activation of the parasympathetic nerve in the autonomic nervous system. Moreover, we confirmed that the amplitude of the biopotential which was caused by 570.1 Gauss was higher than ±20 μA. Thus, we can conclude that EMA treatment successfully activates the parasympathetic nerve in the autonomic nervous system by inducing a biotransformation by the induced biopotential.
authors.affiliation: Wellness Technology R&D Center, Human and Culture Convergence Technology R&D Group, Korea Institute of Industrial Technology, Ansan, South Korea.
authors.forename: Soo-Byeong
authors.initials: SB
authors.lastname: Kim
authors.affiliation: Medical Computer System Laboratory, Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, South Korea.
authors.forename: Woo-Hyuk
authors.initials: WH
authors.lastname: Choi
authors.affiliation: Medical Computer System Laboratory, Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, South Korea.
authors.forename: Wen-Xue
authors.initials: WX
authors.lastname: Liu
authors.affiliation: Eastern and Western Biomedical System Laboratory, Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, South Korea.
authors.forename: Na-Ra
authors.initials: NR
authors.lastname: Lee
authors.affiliation: Medical Computer System Laboratory, Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, South Korea.
authors.forename: Tae-Min
authors.initials: TM
authors.lastname: Shin
authors.affiliation: Eastern and Western Biomedical System Laboratory, Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, South Korea. Electronic address: koaim@yonsei.ac.kr.
authors.forename: Yong-Heum
authors.initials: YH
authors.lastname: Lee
mesh_terms: D026881:Acupuncture; D015669:Acupuncture Points; D015670:Acupuncture Therapy; D001341:Autonomic Nervous System; D015671:Electroacupuncture; D055590:Electromagnetic Phenomena; D006801:Humans; D011680:Pupil; D064171:Superficial Back Muscles
keywords: acupuncture point; electromagnetic acupuncture; pulsed electromagnetic fields; pupil size variability