A study on the evaluation of instantaneous heart rate estimation accuracy

2014 Fiscal Year Final Research Report

• Project/Area Number: 24500518
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biomedical engineering/Biological material science
• Research Institution: Hosei University
• Principal Investigator: YANA Kazuo 法政大学, 理工学部, 教授 (50138244)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 生体信号処理 / 心拍変動 / 自律神経 / 周波数解析 / 無侵襲計測 / スプライン関数 / 瞬時心拍数 / 心拍ゆらぎ

Outline of Final Research Achievements

Heart rate is fluctuating due to the autonomic nervous activity. Spectral analysis of the heart rate variability has been known to be effective for noninvasive evaluation of the autonomic nervous activity. There are several methods to reconstruct the instantaneous heart rate signals from RR intervals, but researchers are selecting the method heuristically. This research intend to introduce indices to evaluate the accuracy of instantaneous heart rate reconstruction method. A new index named effective bandwidth has been shown to be effective for the evaluation. DCSI has been identified as the best heart rate reconstruction method but accompany the estimation bias at the high frequency region. The research found a blending method of DCSI and SIHR yielded a better estimation accuracy without any bias in estimated spectral pattern. The proposed method will be useful not only to evaluate the accuracy of the heart rate reconstruction accuracy but also useful to create new algorithm

Free Research Field

医用工学