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Methods Inf Med 1994; 33(01): 20-21
DOI: 10.1055/s-0038-1634967
Original Article
Schattauer GmbH

Change in Impulse Response of Heart Rate to Instantaneous Lung Volume

H. Mizuta
1   Department of Electrical Engineering, Hosei University, Tokyo, Japan
,
Y. Iida
2   Department of Electrical Engineering, Nagoya University, Nagoya, Japan
,
K. Yana
2   Department of Electrical Engineering, Nagoya University, Nagoya, Japan
,
J. P. Saul
3   Harvard-MIT, Division of Health Sciences and Technology, Cambridge MA, USA
,
R. J. Cohen
3   Harvard-MIT, Division of Health Sciences and Technology, Cambridge MA, USA
› Author Affiliations
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Publication History

Publication Date:
08 February 2018 (online)

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Abstract:

A method is presented that relates the heart rate variability (HRV) to the change in instantaneous lung volume (ILV) under non-stationary conditions. Methods utilizing a recursive least squares (RLS) algorithm and a modified Widrow LMS algorithm are proposed to keep track of changes in impulse response of HRV to ILV. Results are presented of real data analysis and a dedicated system is proposed utilizing DSP chips for the real time data processing.

Keywords

Heart Rate Variability - Instantaneous Lung Volume - Autonomic Nervous Activity - Adaptive Signal Processing