Design of Real-Time Autonomic Nervous System Evaluation System Using Heart Instantaneous Frequency

다국어 초록 (Multilingual Abstract)

In this study, we attempt to design a real-time autonomic nervous system (ANS) evaluation system usable during exercise using heart instantaneous frequency (HIF). Although heart rate variability (HRV) is considered to be a representative signal widely used ANS evaluation system, the R-peak detection process must be included to obtain an HRV signal, which involves a high sampling frequency and interpolation process. In particular, it cannot accurately evaluate the ANS using HRV signals during exercise because it is difficult to detect the R-peak of electrocardiogram (ECG) signals with exposure to many noises during exercise. Therefore, in this study, we develop the ground for a system that can analyze an ANS in real-time by using the HIF signal circumventing the problem of the HRV signal during exercise. First, we compare the HRV and HIF signals in order to prove that the HIF signal is more efficient for ANS analysis than HRV signals during exercise. Further, we performed real-time ANS analysis using H1F and confirmed that the exerciser's ANS variation experiences massive surges at points of acceleration and deceleration of the treadmill (similar to HRV).

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. Evaluation of ANS
• 3. ECG Signal Processing
• 4. Test and Discussion
• 5. Conclusion
• Acknowledgements
• References

참고문헌 (Reference)

1 Rollin McCraty, "The Effects of Emotions on Short-Term Power Spectrum Analysis of Heart Rate Variability" 76 : 1089-1093, 1995

2 Won Ro Lee, "The Clinical Cardiology" 1998

3 Willem J. Kop, "Relation between Left Ventricular Mass and Hhemodynamic Response to Physical and Physical Stress" 48 : 7988-, 2000

4 Jean Pierre Fauvel, "Mental Stress-Induced Increase in Blood Pressure Is Not Related to Baroreflex Sensitivity in Middle-Aged Healthy Men" 35 : 887-891, 2000

5 Allan Kardec Barros, "Heart Instantaneous Frequency (HIF): An Alternative Approach to Extract Heart Rate Variability" 48 (48): 850-855, 2001

6 Heiko Schoder, "Effects of Mental Stress on Myocardial Blood Flow and Vasomotion in Patients with Coronary Artery Disease" 41 (41): 11-16, 2000

7 Seong Hong Mo, "A Study on Analysis of Stress by Analyzing the Time. Frequency of HRV Signal" 25 (25): 581-587, 2004