Korean Journal of Acupuncture

Society for Meridian and Acupoint (경락경혈학회)
권호 표지

Analysis of Arterial Stiffness by Age Using Pulse Waveform Measurement of 5-levels Graded Pressure

5단계 가압 맥파측정에 의한 연령별 혈관 경화도 분석

  • Kwon, Sun-Min (Dept. of Biomedical Engineering, College of Health Science, Yonsei University) ;
  • Kang, Hee-Jung (Daeyomedi Co., Ltd.) ;
  • Yim, Yun-Kyoung (Dept. of Meridian & Acupoint, College of Oriental Medicine, Daejeon University) ;
  • Lee, Yong-Heum (Dept. of Biomedical Engineering, College of Health Science, Yonsei University)
  • 권선민 (연세대학교 보건과학대학 의공학과 한의공학연구실) ;
  • 강희정 (대요메디(주)) ;
  • 임윤경 (대전대학교 한의과대학 경락경혈학교실) ;
  • 이용흠 (연세대학교 보건과학대학 의공학과 한의공학연구실)
  • Received : 2010.05.22
  • Accepted : 2010.06.11
  • Published : 2010.06.27
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Abstract

Objectives : The aim of this study is to measure pulse waveforms by applying 5-level graded pressure, and selecting optimum pulse waveforms. Also to proposing the possibility of using AW(Area of the 1/3 upper height of h1) rate in respect to AT(Total Area) for risk assessment of hypertension or arteriosclerosis is another aim of the study. Methods : Pulse waveforms of normotensive were measured by 5-level graded pressure. The pulse waveforms well reflecting properties of blood vessel(having the largest h1) were selected for optimum pulse waveforms. Various parameters(h-parameter, t-parameter, and others) of optimum pulse waveforms were analyzed. AIx(Augmentation index) was calculated by height-parameters to assess arterial stiffness. The area rate of the 1/3 upper height for h1 in respect to total area was analyzed according to aging. Results : According to aging 1. in height-parameter, h2 and h3 were increased but h5 was decreased. 2. In time-parameter, t2, t3, and t5 were getting short. 3. Area of systolic period was increased, and that of diastolic period decreased. 4. AIx rose by aging. 5. AW was significantly increased despite no changes in AT. Conclusions : By analyzing optimum pulse waveforms of 5-level graded pressure method, we could complement weakness of single graded pressure method. Also, possibility of applying the AW rate to risk assessment of hypertension or arteriosclerosis was confirmed in normotensive population which might not be assessed by AIx.

Keywords

References

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