A Study on Human Autonomic Nervous System Activities by Far-Infrared Ray Hyperthermia

원적외선 온열이 인체 자율신경기능에 미치는 영향에 관한 연구

  • Park Chan-Ouk (Department of Electrical & Electronic Engineering, Yonsei University) ;
  • Jang Yun-Ho (Department of Electrical & Electronic Engineering, Yonsei University) ;
  • Min Se-Dong (Department of Electrical & Electronic Engineering, Yonsei University) ;
  • Kang Se-Gu (Department of Electrical & Electronic Engineering, Yonsei University) ;
  • Lee Chung-Keun (Department of Electrical & Electronic Engineering, Yonsei University) ;
  • Lee Myoungho (Department of Electrical & Electronic Engineering, Yonsei University)
  • 박찬욱 (연세대학교 공과대학 전기전자공학과) ;
  • 장윤호 (연세대학교 공과대학 전기전자공학과) ;
  • 민세동 (연세대학교 공과대학 전기전자공학과) ;
  • 강세구 (연세대학교 공과대학 전기전자공학과) ;
  • 이충근 (연세대학교 공과대학 전기전자공학과) ;
  • 이명호 (연세대학교 공과대학 전기전자공학과)
  • Published : 2004.12.01

Abstract

This paper describes autonomic nervous system activities caused by hyperthermia of far-infrared ray on human body. Designed protocol and analysis algorithm were evaluated by experiments on 20 subjects to analyze the characteristic of heart rate variability(HRV) signals which could be analyzed by FFT power spectrum and time-frequency analysis. Using Poincare' plot analysis, LF and HF were compared with SD1 and SD2. During the experiment, subject was exposed to hyperthermic effects of far-infrared radiation. We could confirm that far-infrared ray, which was known to improve the blood circulation, stress state and enhancing thermal effect into human body, had an effect on human nervous system. As the hyperthermic temperature of far-infrared ray increased, the activity of cardiovascular system to sustain the homeostasis was observed by means of investigating the increase of the sympathetic activity.

본 논문에서는 원적외선 온열효과가 자율 신경계에 미치는 영향을 심박변동(HRV)을 이용하여 평가 하였다. 측정된 심박변동신호를 FFT 의한 전력스펙트럼을 구함으로써 자율 신경계의 반응 특성을 고찰하고 Poincare plot 분석 방법을 이용하여 결과를 비교 분석하였다. 실험을 통해 심박변동 신호분석해보면 원적외선 온열에 노출되기 전에 비해 노출된 후에 매우 복잡한 모습임을 관찰 할 수 있었는데 이것은 자율신경계가 관여하는 심혈관계 제어 메커니즘이 원적외선 온열에 노출되기 전보다 노출된 후에 더욱 복잡함을 반영하는 것으로 분석된다.

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