2003/06/23 by Bruce J. West, Nicola Scafetta, West, Bruce J. +5
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Biological sciences #FOS: Physical sciences #Quantitative Methods (q-bio.QM) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.dis-nn #cond-mat.stat-mech #q-bio.QM
paper · pdf · doi:10.48550/arxiv.cond-mat/0306581
23 pages, 10 figures
arxiv created 2003/06/23 · arxiv updated 2009/11/30
We analyzed the heartbeat time series of 12 human subjects exposed to progressive central hypovolemia with lower body negative pressure. Two data processing techniques based on wavelet transforms were used to determine the change in the non-stationary nature of the time series with changing negative pressure. Our results suggest that autonomic neural mechanisms driving cardiac interbeat intervals during central hypovolemia go through various levels of multifractility.