Journal of Society of Preventive Korean Medicine (대한예방한의학회지)

Society of Preventive Korean Medicine (대한예방한의학회)
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The Serial Change Analysis of Heart Rate According to Expiration-to-inspiration Time Ratio in Adults

호흡패턴에 따른 성인의 심박수 동태 해석

  • Park, Young-Bae (Biofunctional Medicine & Diagnostics, College of Oriental Medicine, Kyunghee University) ;
  • Han, Kyung-Sook (Biofunctional Medicine & Diagnostics, College of Oriental Medicine, Kyunghee University) ;
  • Nam, Tong-Hyun (Biofunctional Medicine & Diagnostics, College of Oriental Medicine, Sangji University)
  • 박영배 (경희대학교 한의과대학 진단.생기능의학교실) ;
  • 한경숙 (경희대학교 한의과대학 진단.생기능의학교실) ;
  • 남동현 (상지대학교 한의과대학 진단.생기능의학교실)
  • Received : 2010.07.01
  • Accepted : 2010.08.11
  • Published : 2010.08.31
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Abstract

Objectives : This study aims to evaluate the effects of expiration-to-inspiration time ratio (E/I-ratio) on heart rate, which represents cardiac autonomic function, and cold-heat in the healthy people. Methods : 49 healthy young volunteers(male : female = 32 : 17) were recruited in the study. The participants completed the questionnaire for yin-yang pattern identification and then we measured the chest plethysmogram for respiration signal and the electrocardiogram for NN intervals during different E/I-ratio from 1 to 2. We compared heart rate variability including RMS-SD, VLF, LF and HF, and the trend-cycle factors decomposed from NN interval data by time series analysis among the respective E/I-ratio. We also confirmed the difference on the trend-cycle factors according to the score of the questionnaire for cold and heat pattern identification. Results : There were differences on the trend-cycle factors from NN interval data, but no significant difference on heart rate variability, among the respective E/I-ratio. We also found significant relationship between the trend-cycle factors and the heat pattern identification scores. Conclusions : The results indicate that cardiac autonomic function can be modulated by the E/I-ratio and the modulation will be slower and more tendencious than respiratory sinus arrhythmia.

Keywords

References

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